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  • 1.
    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
    Demo: Experimental Feasibility Study of CCN-lite on Contiki Motes for IoT Data Streams2016In: ICN 2016: 3rd ACM Conference on Information-Centric Networking, 2016Conference paper (Refereed)
  • 2.
    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)
  • 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.
    Demo: Mobile Opportunistic System for Experience Sharing (MOSES) in Indoor Exhibitions2014Conference paper (Refereed)
  • 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.
    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.

  • 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.
    The Pursuit of 'Appiness: Exploring Android Market Download Behaviour in a Nationwide Cellular Network2014Conference paper (Refereed)
  • 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.
    Hess, Andrea
    Understanding usage and activity in cellular networks by investigating HTTP requests2015Conference 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.

  • 7. 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.

  • 8.
    Feeney, Laura Marie
    et al.
    RISE, Swedish ICT, SICS.
    Andersson, Lars
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Starborg, Stina
    Tidblad, Annika Ahlberg
    Poster Abstract: Using batteries wisely2012Conference paper (Refereed)
  • 9.
    Feeney, Laura Marie
    et al.
    RISE - Research Institutes of Sweden, ICT, SICS.
    Rohner, Christian
    Gunningberg, Per
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Andersson, Lars
    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.

  • 10. 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.

  • 11. Grasic, Samo
    et al.
    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.

  • 12.
    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%.

  • 13.
    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.

  • 14.
    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.

  • 15.
    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.

  • 16.
    Lindgren, Anders
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Abdesslem, Fehmi Ben
    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)
  • 17.
    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
    Design Choices for the IoT in Information-Centric Networks2016Conference 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.

  • 18.
    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.

  • 19.
    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.

  • 20.
    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)
  • 21.
    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.

  • 22.
    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.

  • 23.
    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.

  • 24.
    Lindgren, Anders
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Zaitov, Alisher
    Siderov Mitkov, Belin
    Demo: Opportunistic IoT for Monitoring of Grazing Cattle2016Conference 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.

  • 25. Malik, Adeel
    et al.
    Ahlgren, Bengt
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Klingsbo, Lukas
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Lång, Magnus
    Ngai, Edith
    Ohlman, Börje
    NetInf Live Video Streaming at the 2015 Nordic World Ski Championship (poster)2015Conference paper (Refereed)
  • 26. Malik, Adeel Mohammad
    et al.
    Ahlgren, Bengt
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ohlman, Börje
    MOSES.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ngai, Edith
    Klingsbo, Lukas
    Lång, Magnus
    Experiences from a field test using ICN for live video streaming2015Conference 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.

  • 27. 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.

  • 28. Petz, Agoston
    et al.
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Hui, Pan
    Julien, Christine
    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.

  • 29.
    Rao, Akhila
    et al.
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Schelén, Olov
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Performance Implications for IoT over Information Centric Networks2016Conference 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.

  • 30. 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)
  • 31. 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: Electronic Journal of Information Systems in Developing Countries, ISSN 1681-4835, 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.

  • 32.
    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 Trace2015Conference 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.

  • 33. Yuanyuan, Qiao
    et al.
    Zhang, Yanting
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Jie, Yang
    Understanding Online Shopping and Offline Mobility Behavior in Urban Area from the View of Multilayer Network2016Conference 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.

  • 34. 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.

  • 35. 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.

  • 36. Zhao, Xiaoxing
    et al.
    Yuanyuan, Qiao
    Zhongwei, Si
    Jie, Yang
    Lindgren, Anders
    RISE, Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Prediction of user app usage behavior from geo-spatial data2016Conference 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.

1 - 36 of 36
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