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  • 1.
    Aftab, Muhammad Usman
    et al.
    National University of Sciences and Technology, Pakistan.
    Hussain, Mehdi
    National University of Sciences and Technology, Pakistan.
    Lindgren, Anders
    RISE Research Institutes of Sweden, Digital Systems, Industrial Systems.
    Ghafoor, Abdul
    RISE Research Institutes of Sweden, Digital Systems, Industrial Systems.
    Towards A Distributed Ledger Based Verifiable Trusted Protocol for VANET2021In: 2021 International Conference on Digital Futures and Transformative Technologies, ICoDT2 2021, Institute of Electrical and Electronics Engineers Inc. , 2021Conference paper (Refereed)
    Abstract [en]

    To ensure traffic safety and proper operation of vehicular networks, safety messages or beacons are periodically broadcasted in Vehicular Adhoc Networks (VANETs) to neighboring nodes and road side units (RSU). Thus, authenticity and integrity of received messages along with the trust in source nodes is crucial and highly required in applications where a failure can result in life-threatening situations. Several digital signature based approaches have been described in literature to achieve the authenticity of these messages. In these schemes, scenarios having high level of vehicle density are handled by RSU where aggregated signature verification is done. However, most of these schemes are centralized and PKI based where our goal is to develop a decentralized dynamic system. Along with authenticity and integrity, trust management plays an important role in VANETs which enables ways for secure and verified communication. A number of trust management models have been proposed but it is still an ongoing matter of interest, similarly authentication which is a vital security service to have during communication is not mostly present in the literature work related to trust management systems. This paper proposes a secure and publicly verifiable communication scheme for VANET which achieves source authentication, message authentication, non repudiation, integrity and public verifiability. All of these are achieved through digital signatures, Hash Message Authentication Code (HMAC) technique and logging mechanism which is aided by blockchain technology.

  • 2.
    Ahlgren, Bengt
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Wu, Yanqiu
    RISE, Swedish ICT, SICS. KTH Royal Institute of Technology, Sweden.
    Demo: Experimental Feasibility Study of CCN-lite on Contiki Motes for IoT Data Streams2016In: Proceedings of the 3rd ACM Conference on Information-Centric Networking, 2016, p. 221-222Conference paper (Refereed)
    Abstract [en]

    Many IoT applications are inherently information-centric, making it advantageous to use ICN transport. We demonstrate CCN-lite ported to run on Contiki sensor motes with limited processing and storage resources. We show a method for mapping streams of sensor data to a stream of immutable CCN named data objects, and an adaptive probing method to find the newest value. We also demonstrate interoperation between MQTT and CCN via a gateway. A higher level goal is to use ICN as an open interface for accessing IoT data.

  • 3.
    Ben Abdesslem, Fehmi
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Cacheability of YouTube Videos in Cellular Networks2014Conference paper (Refereed)
    Abstract [en]

    Video traffic now represents a growing proportion of the traffic on cellular networks, causing capacity problems for operators and increased delays for users. Studies have shown that deploying caches at the network level reduces the delay for the end-user and the overall traffic volume for the telecom operator. In this paper, we analyse a large nationwide dataset of real-life video requests sent by mobile users to a popular video streaming website. This analysis is the first to rely on such a large dataset, and sheds light on the optimal cacheability of video content with caches distributed in the cellular network, and how efficient some existing cache replacement algorithms are at reducing the number of requests sent to the video provider. We show that depending on the cache size and algorithm parameters, up to 20.33% of the requests can be served by a local cache.

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  • 4.
    Ben Abdesslem, Fehmi
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Demo: Mobile Opportunistic System for Experience Sharing (MOSES) in Indoor Exhibitions2014Conference paper (Refereed)
    Abstract [en]

    Information-Centric Networking (ICN) is an alternative architecture for computer networks, where the communication is focused on the data being transferred instead of the communicating hosts. This paper describes a demo of an experience sharing application for mobile phones built on an ICN platform designed for devices with intermittent connectivity. In particular, we detail how this application will be showcased in an indoor exhibition where experience is shared with media content that is geo-tagged using Bluetooth beacons and spread opportunistically to other users. 

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  • 5.
    Ben Abdesslem, Fehmi
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Large Scale Characterisation of YouTube Requests in a Cellular Network2014Conference paper (Refereed)
    Abstract [en]

    Traffic from wireless and mobile devices is expected to soon exceed traffic from fixed devices. Understanding the behaviour of users on mobile devices is important in order to improve the offered services and the provision of the underlying network. Globally, more than 60% of consumer Internet traffic is estimated to be video traffic, and the most popular video website, YouTube, estimates that mobile access makes up nearly 40% of the global watch time. This paper presents the first work to study the characteristics of YouTube user requests on a nationwide cellular network. This study is based on the analysis of a large dataset generated by 3 million users and collected by a major telecom operator. We show for instance that 20% of the users generate 78% of the requests, and that over 80% of the requests target only 20% of the distinct videos accessed during the data collection period. Our results provide a comprehensive insight into the way people use YouTube on mobile devices, and show a very high potential for video cacheability on the cellular network.

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  • 6.
    Ben Abdesslem, Fehmi
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    The Pursuit of 'Appiness: Exploring Android Market Download Behaviour in a Nationwide Cellular Network2014Conference paper (Refereed)
    Abstract [en]

    Mobile devices are now part of our everyday lives, and the emergence of online application marketplaces allow a rapid spread of new mobile applications to a large user base. Such user-installed mobile applications constitute a large part of our daily interaction with the devices. With more than one million available applications, Android Market, the online catalog for Android devices allows users to choose and download a large selection of disparate applications. Analysing and characterising the application marketplace download patterns provides a better insight on the needs and behaviour of users In this paper, we explore a large dataset collected by a major European telecom operator to study the downloads of Android applications on a nationwide scale. Our findings include that more than 43% of the application data downloaded is for games, and that a set of only 10 GB of applications is responsible for 88% of the 45 TB downloaded in total by all the users. 

  • 7.
    Ben Abdesslem, Fehmi
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Hess, Andrea
    RISE, Swedish ICT, SICS.
    Understanding usage and activity in cellular networks by investigating HTTP requests2015In: 2015 12th Annual IEEE Consumer Communications and Networking Conference (CCNC), 2015, 11, p. 570-575, article id 7158036Conference paper (Refereed)
    Abstract [en]

    The number of mobile devices is estimated to now exceed the world’s population, using more and more cloud services, and hence generating more and more traffic. Smartphones generate 95% of the total global handset traffic, and while approximately half of this traffic is sent to cellular networks, other handsets such as tablets are also using increasingly the cellular networks. This paper provides a closer look at the traffic generated on cellular networks by exploring billions of HTTP requests sent by millions of users to a nation-wide cellular network during 41 days. We confirm that - as in many other contexts - 20% of the users are responsible for more than 80% of the requests and provide a deeper analysis of the cellular network usage. Furthermore, we characterise the activity of users on their mobile device and which cloud services they use. For instance, almost 30% of the users use the cellular network frequently, mainly using search services and social networks, but 20% of their requests are sent to advertisement and tracking systems.

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  • 8. Berti, Valentino
    et al.
    Björkman, Mats
    Norden, Lars-Åke
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Datakommunikation2012 (ed. 7)Book (Other academic)
    Abstract [sv]

    Denna bok ger en bred introduktion till datakommunikation i allmänhet och internetteknologi i synnerhet. Vad Internet är beror helt på vem du frågar, och detsamma gäller ämnet datakommunikation. Från att ha varit ett specialämne som studenter möjligtvis läste i årskurs 3 eller 4 på datatekniska universitetsutbildningar så kan man idag lära sig grunderna i datakommunikation på flera gymnasieprogram. Författarna till denna bok har alla personlig erfarenhet av att undervisa i ämnet datakommunikation på olika nivåer. Bokens struktur möjliggör olika sätt att tillgodogöra sig materialet beroende på vad som är mest tilltalande för respektive målgrupp.

  • 9.
    Brito, Flavio
    et al.
    Ericsson AB, Sweden.
    Cisneros, J. C.
    Ericsson AB, Sweden.
    Linder, Neiva
    Ericsson AB, Sweden.
    Riggio, Roberto
    Università Politecnica Delle Marche, Italy.
    Coronado, E
    i2CAT Foundation, Spain; Universidad de Castilla-La Mancha, Spain.
    Palomares, J.
    i2CAT Foundation, Sweden.
    Adzic, J.
    Telecom Italia SpA, Italy.
    Renart, J.
    Atos Spain SAE, Spain.
    Lindgren, Anders
    RISE Research Institutes of Sweden, Digital Systems, Industrial Systems.
    Rosa, Miguel
    Aerotools, Spain.
    Ödling, Per
    Lund University, Sweden.
    A network architecture for scalable end-to-end management of reusable AI-based applications2023In: 2023 14th International Conference on Network of the Future (NoF), 2023, p. 98-102Conference paper (Refereed)
    Abstract [en]

    Artificial intelligence (AI) is a key enabler for future 6G networks. Currently, related architecture works propose AI-based applications and network services that are dedicated to specific tasks (e.g., improving the performance of RAN with AI). These proposed architectures offer a unique way to collect data, process it, and extract features from data for each AI-based application. However, this dedicated approach creates AI-silos that hinder the integration of AI in the networks. In other words, such AI-silos create a set of AI-models and data for AI-based applications that only work within a single dedicated task. This single-task approach limits the end-to-end integration of AI in the networks. In this work, we propose a network architecture to deploy AI-based applications, at different network domains, that prevents AI-silos by offering reusable data and models to ensure scalable deployments. We describe the architecture, provide workflows for the end-to-end management of AI-based applications, and show the viability of the architecture through multiple use cases.

  • 10.
    Eriksson, Joakim
    et al.
    RISE Research Institutes of Sweden, Digital Systems, Data Science.
    Vikberg, Tommy
    RISE Research Institutes of Sweden, Built Environment, Building and Real Estate.
    Lindgren, Anders
    RISE Research Institutes of Sweden, Digital Systems, Industrial Systems.
    5G i träindustrin2022Report (Other academic)
    Abstract [sv]

    Privata 5G nätverk – antingen som en del av ett publikt eller som ett helt eget mobilnät erbjuder möjliga lösningar på ett antal av de utmaningar som finns kring WiFi och trådlösa uppkopplingar i logistik och produktion. Tekniken börjar bli väletablerad och antalet leverantörer ökar snabbt samtidigt som priser för infrastrukturen sjunker i pris. Förutom att femte generationens mobilnät löser problem kring mobilitet och uppkoppling så finns ett antal intressanta funktioner såsom positionering och standardiserad edge computing för lokala digitala tjänster. Dessa funktioner bör dock ses som en del av en framtida uppgradering snarare än något som finns tillgängligt idag (dock inte så långt bort in i framtiden). Alla de besökta sågverken hade liknande utmaningar kring trådlös uppkoppling och i vissa fall har även 4G-baserade lösningar börjat användas – med gott resultat.

    Tyvärr fick vi inte konkreta priser från de operatörer och leverantörer som dialog fördes med men via vissa leverantörer kan man ändå få en viss indikation (se t ex AWS erbjudande där det för ett privat nät med två radioaccespunkter ligger på ca 140 KSEK / månad totalt).

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  • 11.
    Feeney, Laura Marie
    et al.
    RISE, Swedish ICT, SICS.
    Andersson, Lars
    Pricer AB, Sweden.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab. Pricer AB, Sweden.
    Starborg, Stina
    Etteplan Stockholm AB, Sweden.
    Tidblad, Annika Ahlberg
    Etteplan Stockholm AB, Sweden.
    Poster Abstract: Using batteries wisely2012Conference paper (Refereed)
    Abstract [en]

    We describe early results from a program of experiments to characterize battery operation in the WSN regime.

  • 12.
    Feeney, Laura Marie
    et al.
    RISE - Research Institutes of Sweden (2017-2019), ICT, SICS.
    Rohner, Christian
    Uppsala University, Sweden.
    Gunningberg, Per
    Uppsala University, Sweden.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Andersson, Lars
    Pricer AB, Sweden.
    How do the dynamics of battery discharge affect sensor lifetime?2014Conference paper (Refereed)
    Abstract [en]

    Evaluation of energy consumption and device lifetime in battery-powered wireless sensor networks (WSN) is almost exclusively based on measurements or simulations of the total charge (i.e. total mA-h) consumed by the device. In reality, batteries are complex electro-chemical systems and their discharge behavior depends heavily on the timing and intensity of the applied load. However, there is very little empirical data or reliable models available for the kinds of batteries and loads that are typically used in WSNs. The effect of battery dynamics on sensor lifetime is therefore not well understood. We characterize CR2032 Li coin cells using carefully controlled synthetic loads and a wide range of WSN-typical load parameters. Our results are the first to quantify in-depth the discharge behavior of primary batteries in the WSN context. We report that in some common cases, observed lifetimes can differ from predicted ones by almost a factor of three. Furthermore, loads with similar average currents -- which would be expected to have similar lifetimes -- can vary significantly in the amount of capacity they can utilize, with short duration loads generally faring better. The results show that energy evaluation based on ``total mA-h consumed'' has significant limitations. This has important implications for the design and evaluation of WSN applications, as well as for important practical problems in network dimensioning and lifetime estimation.

  • 13. Grasic, Samo
    et al.
    Davies, Elwyn
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Doria, Avri
    The Evolution of a DTN Routing Protocol - PRoPHETv22011Conference paper (Refereed)
    Abstract [en]

    Research within Delay- and Disruption Tolerant Networks (DTN) has evolved into a mature research area. PRoPHET is a routing protocol for DTNs that was developed when DTN research was in its infancy and which has been studied by many. In this paper we investigate how the protocol can evolve to meet new challenges that has been identified through research and practical experience. We propose some minor modifications to the routing metric cal- culations done in PRoPHET which has potential to alleviate some issues and improve the performance of the protocol. Using these modifications, we define an updated version of the protocol called PRoPHETv2. We run simulations to verify the operation of the protocol and compare its performance against the original version of the protocol as well as some other routing protocols. The evalua- tions are done using both traces from an existing DTN deployment and a synthetic mobility model. Since the basic mechanisms of the protocol remain the same, migrating existing implementations to the new version of PRoPHET is possible with limited effort.

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  • 14.
    Grasic, Samo
    et al.
    Luleå University of Technology, Sweden.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    An Analysis of Evaluation Practices for DTN Routing Protocols2012Conference paper (Refereed)
    Abstract [en]

    Over the past decade, a lot of research has been done to develop efficient routing protocols for Delay- and Disruption Tolerant Networks (DTNs). In the course of this work, many comparative evaluation studies have been done to determine which of two proposed protocols is the better one (for a given situation). The majority of these evaluations are based on results gained from simulated network environments. In order to conduct a relevant evaluation of routing schemes, numerous conditions, policies and data need to be specified and fed into the simulation environment. The aim of our work in this paper is to discuss current DTN evaluation practices through a thorough and critical literature study. Based on the surveyed material, we show some weaknesses and lack of argumentation used in the evaluations. Through this, we hope to aid in bridging the gap between simulated and real-world DTN environments. In addition, and as a call for further research, we propose a model for evaluation of DTN routing schemes that outlines the most crucial inputs that needs to be considered in the evaluation process. This model is then projected onto evaluation practices used for evaluations of DTN routing protocols in a set of sixteen papers roughly covering a decade of DTN research.

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  • 15.
    Grasic, Samo
    et al.
    Luleå University of Technology, Sweden.
    Lindgren, Anders
    RISE, Swedish ICT, SICS.
    Revisiting a remote village scenario and its DTN routing objective2014In: Computer Communications, ISSN 0140-3664, E-ISSN 1873-703X, Vol. 48, p. 133-140Article in journal (Refereed)
    Abstract [en]

    Use of opportunistic connectivity together with the delay tolerant network (DTN) architecture provides an economically viable alternative to traditional ICT solutions for communication challenged areas. Here, the remote village scenario is commonly established as a motive in terrestrial DTN research. However, the majority of the DTN research does not discuss the remote village scenario as a concept at any length. Instead, urban scenarios are employed, both as benchmarks and as target scenarios. This can be a problem as it does not take into account the specific characteristics of a concrete real-world remote village scenario. In this paper we discuss how these characteristics affect and shape the deployment of network and the network itself. Furthermore, we show how these network conditions forced us to change the focus from the traditional DTN routing objective forwarding problem to the traffic queuing problem. Finally, we discuss how the characteristics seen in the case study of one remote village can be generalized for other remote village scenarios. All material and observations used in this paper are drawn from our 5 years experiences of DTN deployments in remote mountainous villages of Sweden.

  • 16.
    Lagerspetz, Eemil
    et al.
    University of Helsinki, Finland.
    Flores, Huber
    University of Helsinki, Finland.
    Mäkitalo, Niko
    University of Helsinki, Finland.
    Hui, Pan
    The Hong Kong University of Science and Technology, Hong Kong; University of Helsinki, Finland.
    Nurmi, Pettteri
    Lancaster University, UK.
    Tarkoma, Susu
    University of Helsinki, Finland.
    Passarella, Andrea
    IIT-CNR, Italy.
    Ott, Jörg
    Technical University of Munich, Germany.
    Reichl, Peter
    University of Vienna, Austria.
    Conti, Marco
    IIT-CNR, Italy.
    Fiedler, Marcus
    Blekinge Institute of Technology, Sweden.
    Singh, Jatinder
    University of Cambridge, UK.
    Strufe, Torsten
    Technische Universitat Dresden, Germany.
    Hossfeld, Tobias
    University of Duisburg-Essen, Germany.
    Lindgren, Anders
    RISE - Research Institutes of Sweden, ICT, SICS.
    Quersia, Daniele
    Bell Labs Cambridge, UK.
    Pervasive Communities in the Internet of People2018Conference paper (Refereed)
    Abstract [en]

    The Internet has traditionally been a device-orientedarchitecture where devices with IP addresses are first-classcitizens, able to serve and consume content or services, and theirowners take part in the interaction only through those devices.The Internet of People (IoP) is a recent paradigm where devicesbecome proxies of their users, and can act on their behalf. Torealize IoP, new policies and rules for how devices can take actionsare required. The role of context information grows as devicesact autonomously based on the environment and existing socialrelationships between their owners. In addition, the social profilesof device owners determine e.g. how altruistic or resourceconservingthey are in collaborative computing scenarios. In thispaper we focus on community formation in IoP, a prerequisitefor enabling collaborative scenarios, and discuss main challengesand propose potential solutions.

  • 17.
    Li, Fei
    et al.
    Fudan University, China.
    Chen, Yang
    Fudan University, China.
    Xie, Rong
    Fudan University, China.
    Ben Abdesslem, Fehmi
    RISE - Research Institutes of Sweden, ICT, SICS.
    Lindgren, Anders
    RISE - Research Institutes of Sweden, ICT, SICS.
    Understanding Service Integration of Online Social Networks: A Data-Driven Study2018In: 2018 IEEE International Conference on Pervasive Computing and Communications Workshops, PerCom Workshops 2018, 2018, p. 848-853Conference paper (Refereed)
    Abstract [en]

    The cross-site linking function is widely adopted by online social networks (OSNs). This function allows a user to link her account on one OSN to her accounts on other OSNs. Thus, users are able to sign in with the linked accounts, share contents among these accounts and import friends from them. It leads to the service integration of different OSNs. This integration not only provides convenience for users to manage accounts of different OSNs, but also introduces usefulness to OSNs that adopt the cross-site linking function. In this paper, we investigate this usefulness based on users' data collected from a popular OSN called Medium. We conduct a thorough analysis on its social graph, and find that the service integration brought by the crosssite linking function is able to change Medium's social graph structure and attract a large number of new users. However, almost none of the new users would become high PageRank users (PageRank is used to measure a user's influence in an OSN). To solve this problem, we build a machine-learning-based model to predict high PageRank users in Medium based on their Twitter data only. This model achieves a high F1-score of 0.942 and a high area under the curve (AUC) of 0.986. Based on it, we design a system to assist new OSNs to identify and attract high PageRank users from other well-established OSNs through the cross-site linking function.

  • 18.
    Li, Yuhong
    et al.
    Beijing University of Posts and Telecommunications, China; Tongji University, China.
    Shi, Xinyue
    Beijing University of Posts and Telecommunications, China.
    Lindgren, Anders
    RISE - Research Institutes of Sweden, ICT, SICS. Lulea University of Technology, Sweden.
    Hu, Zhuo
    Beijing University of Posts and Telecommunications, China; Tongji University, China.
    Zhang, Peng
    Beijing University of Posts and Telecommunications, China.
    Jin, Di
    Beijing University of Posts and Telecommunications, China.
    Zhou, Yingchao
    Beijing University of Posts and Telecommunications, China.
    Context-aware data dissemination for ICN-based vehicular ad hoc networks2018In: Information, E-ISSN 2078-2489, Vol. 9, no 11, article id 263Article in journal (Refereed)
    Abstract [en]

    Information-centric networking (ICN) technology matches many major requirements of vehicular ad hoc networks (VANETs) in terms of its connectionless networking paradigm accordant with the dynamic environments of VANETs and is increasingly being applied to VANETs. However, wireless transmissions of packets in VANETs using ICN mechanisms can lead to broadcast storms and channel contention, severely affecting the performance of data dissemination. At the same time, frequent changes of topology due to driving at high speeds and environmental obstacles can also lead to link interruptions when too few vehicles are involved in data forwarding. Hence, balancing the number of forwarding vehicular nodes and the number of copies of packets that are forwarded is essential for improving the performance of data dissemination in information-centric networking for vehicular ad-hoc networks. In this paper, we propose a context-aware packet-forwarding mechanism for ICN-based VANETs. The relative geographical position of vehicles, the density and relative distribution of vehicles, and the priority of content are considered during the packet forwarding. Simulation results show that the proposed mechanism can improve the performance of data dissemination in ICN-based VANET in terms of a successful data delivery ratio, packet loss rate, bandwidth usage, data response time, and traversed hops.

  • 19.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Efficient content-distribution in a hybrid opportunistic network2011Conference paper (Refereed)
    Abstract [en]

    Information or content centric networking is believed by many to have great potential to be the appropriate networking paradigm for the future Internet. In information centric networking, focus is shifted from the end-points in the network to the information objects themselves, with less care being placed on from where the information is fetched. In addition to the benefits this networking paradigm has in fixed networks, it also simplifies operation in mobile networks and has the potential to improve performance. In this paper, we describe one way in which the NetInf network architecture can be used in a hybrid mobile network in an urban setting, and run simulations to evaluate the benefits that this approach can yield, both to the end users (in terms of improved performance such as reduced latency with over 50%), as well as to the operators in terms of a reduction of traffic load in the cellular access networks with up to 97%.

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  • 20.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Samelandets rymd-Internet2009In: Populär Astronomi, Vol. 10, p. 5p. 12-16Article in journal (Refereed)
    Abstract [sv]

    Vad har NASA:s expeditioner för att utforska solsystemet gemensamt med samisk renskötsel i de svenska fjällen? Vid en första anblick kan de inte vara mer olika. NASA använder de senaste resultaten från den bästa spjutspetsforskningen vid sina expeditioner, medan renskötselnäringen är baserad på traditioner som sträcker sig hundratals år bakåt i tiden. Det finns dock även likheter, och i denna artikel kommer vi att studera hur forskare har utvecklat ett nytt kommunikationsparadigm för att möjliggöra ett ”interplanetärt Internet”, och hur detta även får stor genomslagskraft i samernas verksamhet.

  • 21.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Social networking in a disconnected network: fbDTN: facebook over DTN2011Conference paper (Refereed)
    Abstract [en]

    In this demo, we describe the design and implementation of fbDTN, a gateway that allow users to access Facebook services over a Disruption Tolerant Network (DTN) in a convenient and secure manner. Our system enables users to read their news feed, post status updates and photos, and comment and "like" the posts of other people. We also show the importance of supporting applications like this in a DTN and allow demo session attendees to see this system in action.

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  • 22.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Towards new methods for mobility data gathering: content, sources, incentives2009In: Proceedings of the 1st ACM International Workshop on Hot Topics of Planet-Scale Mobility Measurements - HotPlanet '09, 2009, 10, p. 0-0Conference paper (Refereed)
    Abstract [en]

    Over the past decade, huge amounts of work has been done in mobile and opportunistic networking research. Unfortunately, much of this has had little impact as the results have not been applicable to reality, due to incorrect assumptions and models used in the design and evaluation of the systems. In this paper, we outline some of the problems of the assumptions of early research in the field, and provide a survey of some initial work that has started to take place to alleviate this through more realistic modelling and measurements of real systems. We do note that there is still much work to be done in this area, and then go on to identify some important properties of the network that must be studied further. We identify the types of data that are important to measure, and also give some guidelines on finding existing and potentially new sources for such data and incentivizing the holders of the data to share it.

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  • 23.
    Lindgren, Anders
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ben Abdesslem, Fehmi
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Schelén, Olov
    Malik, Adeel
    Applicability and Tradeoffs of Information-Centric Networking for Efficient IoT2015Other (Other academic)
  • 24.
    Lindgren, Anders
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ben Abdesslem, Fehmi
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Schelén, Olov
    Luleå University of Technology, Sweden.
    Malik, Adeel Mohammad
    Ericsson, Sweden.
    Design Choices for the IoT in Information-Centric Networks2016In: : 2016 13th IEEE Annual Consumer Communications & Networking Conference (CCNC), 2016, 10, p. 882-888Conference paper (Refereed)
    Abstract [en]

    This paper outlines the tradeoffs involved in utilizing Information-Centric Networking (ICN) for Internet of Things (IoT) scenarios. It describes contexts and applications where the IoT would benefit from ICN, and where a hostcentric approach would be better. Requirements imposed by the heterogeneous nature of IoT networks are discussed in terms of connectivity, power availability, computational and storage capacity. Design choices are then proposed for an IoT architecture to handle these requirements, while providing efficiency and scalability. An objective is to not require any IoT specific changes of the ICN architecture per se, but we do indicate some potential modifications of ICN that would improve efficiency and scalability for IoT and other applications.

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  • 25.
    Lindgren, Anders
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ben Abdesslem, Fehmi
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Schelén, Olov
    Malik, Adeel Mohammad
    Proposed Design Choices for IoT over Information Centric Networking2015Other (Other academic)
    Abstract [en]

    This document discusses and describes design choices made in order to utilize Information Centric Networking (ICN) for the Internet of Things (IoT). Based on requirements and challenges identified in draft-zhang-icnrg-iotchallenges-00, we propose design choices for an IoT architecture to handle these requirements, while providing efficiency and scalability. An objective is to, as far as possible, not require IoT specific changes of the ICN architectures per se, but we do indicate some potential modifications of ICN that would improve efficiency and scalability for IoT and other applications. Furthermore, the document starts outlining how to map the proposed design choices to existing ICN architectures, in a first instance shown for CCN1.0.

  • 26.
    Lindgren, Anders
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Doria, Avri
    Davies, Elwyn
    Grasic, Samo
    Probabilistic Routing Protocol for Intermittently Connected Networks2012In: RFC Series, ISSN 2070-1721Article in journal (Refereed)
    Abstract [en]

    This document is a product of the Delay Tolerant Networking Research Group and has been reviewed by that group. No objections to its publication as an RFC were raised. This document defines PRoPHET, a Probabilistic Routing Protocol using History of Encounters and Transitivity. PRoPHET is a variant of the epidemic routing protocol for intermittently connected networks that operates by pruning the epidemic distribution tree to minimize resource usage while still attempting to achieve the best-case routing capabilities of epidemic routing. It is intended for use in sparse mesh networks where there is no guarantee that a fully connected path between the source and destination exists at any time, rendering traditional routing protocols unable to deliver messages between hosts. These networks are examples of networks where there is a disparity between the latency requirements of applications and the capabilities of the underlying network (networks often referred to as delay and disruption tolerant). The document presents an architectural overview followed by the protocol specification.

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    FULLTEXT02
  • 27.
    Lindgren, Anders
    et al.
    RISE Research Institutes of Sweden, Digital Systems, Industrial Systems.
    Ghafoor, Abdul
    RISE Research Institutes of Sweden, Digital Systems, Industrial Systems.
    Trusted Platform for Disruptive Vehicular Ad Hoc Networks using Distributed Ledger Technology2023In: Proceedings - IEEE Consumer Communications and Networking Conference, CCNC, Institute of Electrical and Electronics Engineers Inc. , 2023, p. 1129-1134Conference paper (Refereed)
    Abstract [en]

    Traffic safety applications and other communication systems for vehicles together with data collection sensors have the potential to improve road safety. For this to be viable however, it is important that the data collection and communication can be trusted so that erroneous or malicious data does not impact the use cases of the applications. This paper studies current and upcoming solutions to such problems and how they can be modified and applied to meet both technical requirements as well as the needs of relevant stakeholders. The paper defines the TruVeLedger framework using technology from the fields of distributed ledgers and vehicular ad hoc networks (VANETs) to create a trusted platform. The paper considers the viability of different approaches to such a platform as well as defining a verifiable trusted communication protocol for vehicular networks. 

  • 28.
    Lindgren, Anders
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Habibovic, Azra
    RISE, Swedish ICT, Viktoria.
    Amanuel, Mahdere
    Englund, Cristofer
    RISE, Swedish ICT, Viktoria.
    ITS-solutions for the identification of dangerous goods and non-moving vehicles research within the Stockholm Bypass project2014In: The 6th International symposium on Tunnel Safety and Security (ISTSS), 2014, p. 613-620Conference paper (Refereed)
  • 29.
    Lindgren, Anders
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Hui, Pan
    ExtremeCom: To Boldly Go Where No One Has Gone Before2011In: Computer communication review, ISSN 0146-4833, E-ISSN 1943-5819, Vol. 41, p. 54-59Article in journal (Refereed)
    Abstract [en]

    Research on networks for challenged environments has become a major research area recently. There is however a lack of true understanding among networking researchers about what such environments really are like. In this paper we give an introduction to the ExtremeCom series of workshops that were created to overcome this limitation. We will discuss the motivation behind why the workshop series was created, give some summaries of the two workshops that have been held, and discuss the lessons that we have learned from them.

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  • 30.
    Lindgren, Anders
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Hui, Pan
    The Quest for a Killer App for Opportunistic and Delay Tolerant Networks (Invited Paper)2009Conference paper (Refereed)
    Abstract [en]

    Delay Tolerant Networking (DTN) has attracted a lot of attention from the research community in recent years. Much work have been done regarding network architectures and algorithms for routing and forwarding in such networks. At the same time as many show enthusiasm for this exciting new research area there are also many sceptics, who question the usefulness of research in this area. In the past, we have seen other research areas become over-hyped and later die out as there was no killer app for them that made them useful in real scenarios. Real deployments of DTN systems have so far mostly been limited to a few niche scenarios, where they have been done as proof-of-concept field tests in research projects. In this paper, we embark upon a quest to find out what characterizes a potential killer applications for DTNs. Are there applications and situations where DTNs provide services that could not be achieved otherwise, or have potential to do it in a better way than other techniques? Further, we highlight some of the main challenges that needs to be solved to realize these applications and make DTNs a part of the mainstream network landscape.

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  • 31.
    Lindgren, Anders
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Hui, Pan
    Tutorial: Delay and Disruption Tolerant Networking2010Conference paper (Refereed)
    Abstract [en]

    Delay and Disruption Tolerant Networking (DTN) is one of the research areas within mobile networking that has grown the fastest over the past few years. A lot of work has been done and published about DTNs, and DTN research has gone from a small niche area to a hot topic in many major conferences, including Mobicom, Mobihoc, Sigcomm, and Infocom. Work in this area addresses networking in environments where some of the implied assumptions of traditional network protocols cannot be met. These characteristics of the networks can include very long propagation delays and frequent disruptions in network links (meaning that there may never even exist a fully connected end-to-end path). Frequently, node mobility must be used to move messages through the network, with opportunistic communication contacts eventually allowing messages to be delivered to their destination. Work in this area was initially begun to support interplanetary networking, but soon many terrestrial scenarios with similar characteristics were discovered. Such scenarios include communication in remote and rural areas and developing countries, vehicular communication, and sensor networks. The very long delays and the lack of end-to-end connectivity means that traditional protocols that require frequent end-to-end interaction become unfeasible and thus there is a need for new communication architecture and application paradigms. Sessions should be bundled and send in single messages whenever possible, and applications must be designed such that they do not leave the user waiting indefinitely for an answer that may take a long time to be delivered. In this tutorial we will give a background and motivation to the research area and show what the differences from traditional networks are. We will then provide an outline of the research that has been done in the area up to this point in different aspects of the system, as well as provide some case studies of real systems. Finally, future challenges for research in this area will be provided. We believe both practical implementation knowledge and deep understanding of the topics are important to give a tutorial. and both instructors have experience in both aspects, and thus, our tutorial would be highly beneficial to participants.

  • 32.
    Lindgren, Anders
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Zaitov, Alisher
    KTH Royal Institute of Technology, Sweden.
    Siderov Mitkov, Belin
    KTH Royal Institute of Technology, Sweden.
    Demo: Opportunistic IoT for Monitoring of Grazing Cattle2016In: Proceedings of the Eleventh ACM Workshop on Challenged Networks, 2016, 8, p. 31-32Conference paper (Refereed)
    Abstract [en]

    Precision livestock farming and other agricultural applications are considered to have great potential to utilise the many benefits of IoT technology. It is however important to maintain low cost and energy consumption to make it feasible in a very competitive market, making opportunistic and D2D communication interesting options. The demo will show a prototype of a system for monitoring grazing cattle in large free-range areas. We will demonstrate the mobile devices collecting data about the animals and their encounters with each other as well as the cloud platform that allows the farmer to access the data for more efficient operation of the farm.

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  • 33.
    Lindgren, Anders
    et al.
    RISE - Research Institutes of Sweden, ICT, SICS.
    Åkerberg, Johan
    Mälardalen University, Sweden.
    Björkman, Mats
    Mälardalen University, Sweden.
    Poster - Feasibility of ICN in automation networks2017In: CHANTS 2017 - Proceedings of the 12th Workshop on Challenged Networks, co-located with MobiCom 2017, Association for Computing Machinery, Inc , 2017, p. 33-34Conference paper (Refereed)
    Abstract [en]

    In an industrial automation environment, there are many sensors generating large volumes of data. Both time-critical data for realtime control as well as less time-critical data for central monitoring and log data need to co-exist in the system with often harsh wireless environments. Thus, available capacity may be low, causing congestion problems and long latencies for by traffic with less stringent timing requirements. In this paper, we consider the feasibility of using Information Centric Networking in industrial automation networks in order to improve efficiency in distribution of data and reduce latency.

  • 34.
    Malik, Adeel Mohammad
    et al.
    Ericsson, Sweden.
    Ahlgren, Bengt
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Klingsbo, Lukas
    Uppsala University, Sweden.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Lång, Magnus
    Uppsala University, Sweden.
    Ngai, Edith C.-H.
    Uppsala University, Sweden.
    Ohlman, Börje
    Ericsson, Sweden.
    NetInf Live Video Streaming at the 2015 Nordic World Ski Championship2015In: 11th Swedish National Computer Networking Workshop (SNCNW 2015), Karlstad, Sweden, 2015, 6Conference paper (Refereed)
  • 35.
    Malik, Adeel Mohammad
    et al.
    Ericsson, Sweden.
    Ahlgren, Bengt
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ohlman, Börje
    Ericsson, Sweden.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ngai, Edith
    Uppsala University, Sweden.
    Klingsbo, Lukas
    Uppsala University, Sweden.
    Lång, Magnus
    Uppsala University, Sweden.
    Experiences from a field test using ICN for live video streaming2015In: 2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW), 2015, 10, article id 7169800Conference paper (Refereed)
    Abstract [en]

    Information Centric Networking (ICN) aims to evolve the Internet infrastructure from a host-centric to a data-centric paradigm. In particular, it improves performance and resource efficiency in events with large crowds where many users in a local area want to generate and watch media content related to that event. In this paper, we present the design of a live video streaming system built on the NetInf ICN architecture and how the architecture was adapted to support live streaming of media content. To evaluate the feasibility and performance of the system, extensive field trials were carried out over several days during a major sports event. We show that our system streams videos successfully with low delay and communication overhead compared with existing Internet streaming services, supporting several thousands of simultaneous users.

  • 36.
    Nilsson, Mattias
    et al.
    Luleå University of Technology, Sweden.
    Schelén, Olov
    Luleå University of Technology, Sweden.
    Lindgren, Anders
    RISE Research Institutes of Sweden, Digital Systems, Data Science. Luleå University of Technology, Sweden.
    Bodin, Ulf
    Luleå University of Technology, Sweden.
    Paniagua, Cristina
    Luleå University of Technology, Sweden.
    Delsing, Jerker
    Luleå University of Technology, Sweden.
    Sandin, Fredrik
    Luleå University of Technology, Sweden.
    Integration of neuromorphic AI in event-driven distributed digitized systems: Concepts and research directions2023In: Frontiers in Neuroscience, ISSN 1662-4548, E-ISSN 1662-453X, Vol. 17, article id 1074439Article in journal (Refereed)
    Abstract [en]

    Increasing complexity and data-generation rates in cyber-physical systems and the industrial Internet of things are calling for a corresponding increase in AI capabilities at the resource-constrained edges of the Internet. Meanwhile, the resource requirements of digital computing and deep learning are growing exponentially, in an unsustainable manner. One possible way to bridge this gap is the adoption of resource-efficient brain-inspired “neuromorphic” processing and sensing devices, which use event-driven, asynchronous, dynamic neurosynaptic elements with colocated memory for distributed processing and machine learning. However, since neuromorphic systems are fundamentally different from conventional von Neumann computers and clock-driven sensor systems, several challenges are posed to large-scale adoption and integration of neuromorphic devices into the existing distributed digital–computational infrastructure. Here, we describe the current landscape of neuromorphic computing, focusing on characteristics that pose integration challenges. Based on this analysis, we propose a microservice-based conceptual framework for neuromorphic systems integration, consisting of a neuromorphic-system proxy, which would provide virtualization and communication capabilities required in distributed systems of systems, in combination with a declarative programming approach offering engineering-process abstraction. We also present concepts that could serve as a basis for the realization of this framework, and identify directions for further research required to enable large-scale system integration of neuromorphic devices.

  • 37. Ohlman, Börje
    et al.
    Strandberg, Ove
    Dannewitz, Christian
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Maglione, Roberta
    Ahlgren, Bengt
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Requirements for accessing data in network storage2010Other (Other academic)
    Abstract [en]

    So far, the intended scope of the DECoupled Application Data Enroute (DECADE) working group has mainly been focused on peer-to-peer (P2P) applications. There are however many non-P2P-based applications that could also benefit from in-network storage for caching content. The target of DECADE should thus be to specify a mechanism that is also suitable for generic applications with certain characteristics and not only P2P applications. This document enumerates a number of requirements that should be considered during the design and implementation of this mechanism.

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  • 38.
    Petz, Agoston
    et al.
    University of Texas, USA.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Hui, Pan
    Deutsche Telekom Labs, Germany.
    Julien, Christine
    University of Texas, USA.
    MADServer: An Architecture for Opportunistic Mobile Advanced Delivery2012Conference paper (Refereed)
    Abstract [en]

    Rapid increases in cellular data traffic demand creative alternative delivery vectors for data. Despite the conceptual attractiveness of mobile data offloading, no concrete web server architectures integrate intelligent offloading in a production-ready and easily deployable manner without relying on vast infrastructural changes to carriers’ networks. Delay-tolerant networking technology offers the means to do just this. We introduce MADServer, a novel DTN-based architecture for mobile data offloading that splits web con- tent among multiple independent delivery vectors based on user and data context. It enables intelligent data offload- ing, caching, and querying solutions which can be incorporated in a manner that still satisfies user expectations for timely delivery. At the same time, it allows for users who have poor or expensive connections to the cellular network to leverage multi-hop opportunistic routing to send and receive data. We also present a preliminary implementation of MADServer and provide real-world performance evaluations.

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  • 39.
    Rao, Akhila
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab. Luleå University of Technology, Sweden.
    Schelén, Olov
    Luleå University of Technology, Sweden.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab. Luleå University of Technology, Sweden.
    Performance Implications for IoT over Information Centric Networks2016In: Proceedings of the Eleventh ACM Workshop on Challenged Networks, 2016, 7, p. 57-62Conference paper (Refereed)
    Abstract [en]

    Information centric networking (ICN) is a proposal for a future internetworking architecture that is more efficient and scalable. While several ICN architectures have been evaluated for networks carrying web and video traffic, the benefits and challenges it poses for Internet of Things (IoT) networks are relatively unexplored. In our work, we evaluate the performance implications for typical IoT network scenarios in the ICN paradigm. We study the behavior of in-network caching, introduce a way to make caching more efficient for periodic sensor data, and evaluate the impact of presence and location of lossy wireless links in IoT networks. In this paper, we present and discuss the results of our evaluations on IoT networks performed through emulations using a specific ICN architecture, namely, content centric networking (CCN). For example, we show that the newly proposed UTS-LRU cache replacement strategy for improved caching performance of time series content streams reduces the number of messages transmitted by up to 16%. Our findings indicate that the performance of IoT networks using ICN are influenced by the content model and the nature of its links, and motivates further studies to understand the performance implications in more varied IoT scenarios.

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  • 40. Scholl, Jeremiah
    et al.
    Lambrinos, Lambros
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Rural Telemedicine Networks Using Store-and-Forward Voice-over-IP2009Conference paper (Refereed)
  • 41. Scholl, Jeremiah
    et al.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Considering Pigeons for Carrying Delay Tolerant Networking based Internet traffic in Developing Countries2012In: The Electronic Journal of Information Systems in Developing Countries, E-ISSN 1681-4835, Vol. 54, p. 1-19Article in journal (Refereed)
    Abstract [en]

    There are many regions in the developing world that suffer from poor infrastructure and lack of connection to the Internet and Public Switched Telephone Networks (PSTN). Delay Tolerant Networking (DTN) is a technology that has been advocated for providing store-and-forward network connectivity in these regions over the past few years. DTN often relies on human mobility in one form or another to support transportation of DTN data. This presents a socio-technical problem related to organizing how the data should be transported. In some situations the demand for DTN traffic can exceed that which is possible to support with human mobility, so alternative mechanisms are needed. In this paper we propose using live carrier pigeons (columba livia) to transport DTN data. Carrier pigeons have been used for transporting packets of information for a long time, but have not yet been seriously considered for transporting DTN traffic. We provide arguements that this mode of DTN data transport provides promise, and should receive attention from research and development projects. We provide an overview of pigeon characteristics to analyze the feasibility of using them for data transport, and present simulations of a DTN network that utilizes pigeon transport in order to provide an initial investigation into expected performance characteristics.

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  • 42.
    Valerio, Lorenzo
    et al.
    CNR Consiglio Nazionale delle Ricerche, Italy.
    Ben Abdesslem, Fehmi
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Bruno, Rafaele
    CNR Consiglio Nazionale delle Ricerche, Italy.
    Passarella, Andrea
    CNR Consiglio Nazionale delle Ricerche, Italy.
    Luoto, Markus
    VTT Technical Research Centre of Finland, Finland.
    Offloading Cellular Traffic with Opportunistic Networks: A Feasibility Study2015In: 2015 14th Annual Mediterranean Ad Hoc Networking Workshop (MED-HOC-NET), 2015, 17, article id 7173296Conference paper (Refereed)
    Abstract [en]

    The widespread diffusion of powerful mobile devices with diverse networking and multimedia capabilities, and the associated blossoming of content-centric multimedia services is contributing to the exponential increase of data traffic in cellular networks. Mobile data offloading is a promising technique to cope with these problems, which allows to deliver data originally targeted for cellular networks to complementary networking technologies. Among the various forms of mobile data offloading in this study we focus on offloading through opportunistic networks. Differently from previous studies in this field we evaluate the efficiency of opportunistic offloading schemes by using a real cellular traffic dataset collected in a large metropolitan area over a period of one month. We focus our analysis on video requests for popular video providers, and we evaluate the potential benefits of using an opportunistic data dissemination scheme to request this videos from local users instead of using the cellular network. As a benchmark, we compare the performance of such system with a simple caching mechanism. We show that a simple opportunistic offloading scheme can improve the performance of the caching system even if only 10% of the users participate in the opportunistic dissemination. This means that operators could offload their network efficiently without needing to deploy additional caching infrastructure.

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  • 43.
    Walker, Brenton
    et al.
    RISE, Swedish ICT, SICS.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Deriving Cellular Network Structure From Inferred Handovers in a Cellular Association Trace2015In: Proceedings of the 6th International Workshop on Hot Topics in Planet-Scale Measurement (HotPlanet '15), 2015, 16Conference paper (Refereed)
    Abstract [en]

    A cellular association trace consists of timestamped events recording user activity in labeled cells in a cellular network. From such data one can infer that if a user appears in two different cells within a short span of time, that a handover took place, and that the coverage areas of the two cells overlap. That is, one can infer geographic information from handover behavior. One would like to expand this kind of inference to a larger scale, perhaps reconstructing a proximity graph of the cellular sites, or creating an approximate 2-dimensional embedding of the cells. We have analyzed a large-scale cellular association trace of several months of activity for several million users on a 3G network, and have found that handover behavior is actually incredibly diverse and complicated, making it very dicult to make any sort of global inferences, even in small sections of a network. In this paper we present some stable elements of handover behavior, and present several methods one can use to extract proximity information from such a trace.

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  • 44.
    Yuanyuan, Qiao
    et al.
    Beijing University of Posts and Telecommunications, China.
    Zhang, Yanting
    Beijing University of Posts and Telecommunications, China.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab. Luleå University of Technology, Sweden.
    Jie, Yang
    Beijing University of Posts and Telecommunications, China.
    Understanding Online Shopping and Offline Mobility Behavior in Urban Area from the View of Multilayer Network2016In: 2016 IEEE International Conference on Network Infrastructure and Digital Content (IC-NIDC), 2016, 8, p. 416-421, article id 7974608Conference paper (Refereed)
    Abstract [en]

    The interactive nature of the Internet offers many opportunities to increase the efficiency of online shopping by improving availability of product information, enabling direct multi-attribute comparisons, and reducing buyer search costs. A great body of research focuses on how consumers shop online or why and how online shopping impacts urban development, but the understanding of mutual influence between online and offline behavior of consumers remains somewhat underserved. This paper bridges that gap by quantifying the relationship between consumers' online shopping and offline mobility behavior. The results of the study give insights to further understand human behavior from both a cyber and real world point of view, which may help to place location based targeted advertisements, and plan commercial & retail centers in urban areas.

  • 45. Zhang, Yanyong
    et al.
    Raychadhuri, Dipankar
    Grieco, Luigi Alfredo
    Baccelli, Emmanuel
    Burke, Jeff
    Ravindran, Ravishankar
    Wang, Guoqiang
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Schelén, Olov
    Requirements and Challenges for IoT over ICN2015Other (Other academic)
    Abstract [en]

    The Internet of Things (IoT) promises to connect billions of objects to the Internet. After deploying many stand-alone IoT systems in different domains, the current trend is to develop a common, "thin waist" of protocols forming a horizontal unified, defragmented IoT platform. Such a platform will make objects accessible to applications across organizations and domains. Towards this goal, quite a few proposals have been made to build a unified host-centric IoT platform as an overlay on top of today's host-centric Internet. However, there is a fundamental mismatch between the host-centric nature of todays Internet and the information-centric nature of the IoT system. To address this mismatch, we propose to build a common set of protocols and services, which form an IoT platform, based on the Information Centric Network (ICN) architecture, which we call ICN-IoT. ICN-IoT leverages the salient features of ICN, and thus provides seamless mobility support, scalability, and efficient content and service delivery. This draft describes representative IoT requirements and ICN challenges to realize a unified ICN-IoT framework. Towards this, we first identify a list of important requirements which a unified IoT architecture should have to support tens of billions of objects, then we discuss how the current IP-IoT overlay fails to meet these requirements, followed by discussion on suitability of ICN for IoT. Though we see most of the IoT requirements can be met by ICN, we discuss specific challenges ICN has to address to satisfy them. Then we provide discussion of popular IoT scenarios including the "smart" home, campus, grid, transportation infrastructure, healthcare, Education, and Entertainment for completeness, as specific scenarios requires appropriate design choices and architectural considerations towards developing an ICN-IoT solution.

  • 46. Zhang, Yanyong
    et al.
    Raychadhuri, Dipankar
    Grieco, Luigi Alfredo
    Baccelli, Emmanuel
    Burke, Jeff
    Ravindran, Ravishankar
    Wang, Guoqiang
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Schelén, Olov
    Requirements and Challenges for IoT over ICN: IETF Internet-Draft draft-zhang-icnrg-icniot-requirements-012016Other (Other academic)
    Abstract [en]

    The Internet of Things (IoT) promises to connect billions of objects to the Internet. After deploying many stand-alone IoT systems in different domains, the current trend is to develop a common, "thin waist" of protocols forming a horizontal unified, defragmented IoT platform. Such a platform will make objects accessible to applications across organizations and domains. Towards this goal, quite a few proposals have been made to build a unified host-centric IoT platform as an overlay on top of today's host-centric Internet. However, there is a fundamental mismatch between the host-centric nature of todays Internet and the information-centric nature of the IoT system. To address this mismatch, we propose to build a common set of protocols and services, which form an IoT platform, based on the Information Centric Network (ICN) architecture, which we call ICN-IoT. ICN-IoT leverages the salient features of ICN, and thus provides seamless mobility support, security, scalability, and efficient content and service delivery. This draft describes representative IoT requirements and ICN challenges to realize a unified ICN-IoT framework. Towards this, we first identify a list of important requirements which a unified IoT architecture should have to support tens of billions of objects, then we discuss how the current IP-IoT overlay fails to meet these requirements, followed by discussion on suitability of ICN for IoT. Though we see most of the IoT requirements can be met by ICN, we discuss specific challenges ICN has to address to satisfy them. Then we provide discussion of popular IoT scenarios including the "smart" home, campus, grid, transportation infrastructure, healthcare, Education, and Entertainment for completeness, as specific scenarios requires appropriate design choices and architectural considerations towards developing an ICN-IoT solution.

  • 47.
    Zhao, Xiaoxing
    et al.
    Beijing University of Posts and Telecommunications, China.
    Yuanyuan, Qiao
    Beijing University of Posts and Telecommunications, China.
    Zhongwei, Si
    Beijing University of Posts and Telecommunications, China.
    Jie, Yang
    Beijing University of Posts and Telecommunications, China.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab. Luleå University of Technology, Sweden.
    Prediction of user app usage behavior from geo-spatial data2016In: Proceedings of the Third International ACM SIGMOD Workshop on Managing and Mining Enriched Geo-Spatial Data, 2016, 7, article id 7Conference paper (Refereed)
    Abstract [en]

    In the era of mobile Internet, a vast amount of geo-spatial data allows us to gain further insights into human activities, which is critical for Internet Services Providers (ISP) to provide better personalized services. With the pervasiveness of mobile Internet, much evidence show that human mobility has heavy impact on app usage behavior. In this paper, we propose a method based on machine learning to predict users' app usage behavior using several features of human mobility extracted from geo-spatial data in mobile Internet traces. The core idea of our method is selecting a set of mobility attributes (e.g. location, travel pattern, and mobility indicators) that have large impact on app usage behavior and inputting them into a classification model. We evaluate our method using real-world network traffic collected by our self-developed high-speed Traffic Monitoring System (TMS). Our prediction method achieves 90.3% accuracy in our experiment, which verifies the strong correlation between human mobility and app usage behavior. Our experimental results uncover a big potential of geo-spatial data extracted from mobile Internet.

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