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  • 51.
    Feeney, Laura Marie
    et al.
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Dunkels, Adam
    RISE., Swedish ICT, SICS.
    Spontaneous networking for secure collaborative applications in an infrastructureless environment2002Konferansepaper (Fagfellevurdert)
  • 52.
    Feeney, Laura Marie
    et al.
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Dunkels, Adam
    RISE., Swedish ICT, SICS.
    Spontnet: experiences in configuring and securing small ad hoc networks2002Inngår i: Proceedings of the Fifth International Workshop on Network Applicances (IWNA5), 2002, 2Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In contrast with work focusing on routing problems in mobile ad hoc networks, this work addresses the problem of system configuration in such networks. In particular, we are interested in ways to instantiate the configuration infrastructure -- naming, addressing, authentication, and key distribution -- needed to establish small-to-medium scale ad hoc networks supporting collaborative applications. We argue that, in such spontaneous networks, much of the necessary infrastructure can be derived from the face-to-face human interactions that these networks are intended to facilitate. This approach has the additional advantage of being intuitive for the non-expert user.

  • 53.
    Feeney, Laura Marie
    et al.
    RISE., Swedish ICT, SICS.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Gunningberg, Per
    Enabling limited traffic scheduling in asynchronous ad hoc networks2005Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We present work-in-progress developing a communication framework that addresses the communication challenges of the decentralized multihop wireless environment. The main contribution is the combination of a fully distributed, asynchronous power save mechanism with adaptation of the timing patterns defined by the power save mechanism to improve the energy and bandwidth efficiency of communication in multihop wireless networks. The possibility of leveraging this strategy to provide more complex forms of traffic management is explored.

  • 54.
    Feeney, Laura Marie
    et al.
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Rohner, Christian
    Timing is everything: the impact of wakeup schedule distribution on asynchronous power save protocols2005Rapport (Annet vitenskapelig)
    Abstract [en]

    Asynchronous power save protocols have been proposed for use in ad hoc networks. In many protocols, nodes independently follow a common periodic wakeup schedule, each with some unknown offset relative to its neighbors. The schedule is defined to ensure deterministic intervals of overlap between nodes, regardless of the distribution of the nodes' wakeup schedules. This paper studies the sensitivity of a simple asynchronous power save protocol to the actual distribution of the nodes' wakeup schedules. In practical terms: For given topology and traffic load, are there particularly "good" or "bad" distributions? We define a simplified model of network operation that allows us to study this question in simulation. The results show that the performance variation has a narrow probability distribution, but with long tails. The variation is shown to derive largely from timing dependencies rather than overall capacity of the system. The result suggests the feasibility of manipulating the wakeup schedule distribution to improve performance. Although the best wakeup distributions often mitigate the performance penalty imposed by the power save protocol, their relative rarity implies that randomized strategies will not be sufficient to obtain maximum advantage.

  • 55.
    Feeney, Laura Marie
    et al.
    RISE - Research Institutes of Sweden, ICT, SICS.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Westerlund, Assar
    RISE - Research Institutes of Sweden, ICT, SICS.
    Spontaneous networking: an application-oriented approach to ad hoc networking2001Inngår i: IEEE Communications Magazine, ISSN 0163-6804, E-ISSN 1558-1896, Vol. 39, nr 6, s. 176-181Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    An ad hoc network must operate independently of a pre-established or centralised network management infrastructure, while still providing administrative services needed to support applications. Address allocation, name resolution, service location, authentication, and access control policies represent just some of the functionality that must be supported - without pre-configuration n or centralised services. In order to solve these problems, it is necessary to leverage some aspect of the environment in which the network operates. We introduce the notion of a spontaneous network, created when a group of people come together for some collaborative activity. In this case, we can use the human interactions associated with the activity in order to establish a basic service and security infrastructure. We structure our discussion around a practical real-world scenario illustrating the use of such a network, identifying the key challenges involved and some of the techniques that can be used to address them.

  • 56.
    Feeney, Laura Marie
    et al.
    RISE., Swedish ICT, SICS.
    Rohner, Christian
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Leveraging a power save protocol to improve performance in ad hoc networks2007Inngår i: SIGMOBILE Mob. Comput. Commun. Rev., ISSN 1559-1662, Vol. 11, s. 51-52Artikkel i tidsskrift (Fagfellevurdert)
  • 57.
    Feeney, Laura Marie
    et al.
    RISE., Swedish ICT, SICS.
    Rohner, Christian
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    The impact of wakeup schedule distribution in synchronous power save protocols on the performance of multihop wireless networks2007Konferansepaper (Fagfellevurdert)
    Abstract [en]

    By definition, the operation of an asynchronous power save protocol permits an arbitrary distribution of nodes' wakeup schedules. This wakeup schedule distribution creates an uncoordinated pattern of times at which nodes will attempt to transmit. Intuitively, we would expect that some patterns will be more (or less) favorable than others for a given traffic pattern. We investigate the impact of this wakeup pattern on network capacity and present simulation data showing that the capacity associated with the best wakeup patterns is significantly larger than that of the worst. This result not only gives insight to the behavior of such protocols, but also acts as a feasibility study showing the potential benefit of mechanisms by which nodes adapt their wakeup schedules to obtain improved performance.

  • 58.
    Gunnar, Anders
    et al.
    RISE., Swedish ICT, SICS.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Blume, Oliver
    Burness, Louise
    Eardley, Philip
    Hepworth, Eleanor
    Sachs, Joachim
    Surtees, Abigail
    Access and Path Selection in Ambient Networks2007Konferansepaper (Fagfellevurdert)
  • 59.
    Hoiland-Jorgensen, Toke
    et al.
    Karlstad University, Sweden.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Hurtig, Per
    Karlstad University, Sweden.
    Brunstrom, Anna
    Karlstad University, Sweden.
    Measuring Latency Variation in the Internet2016Inngår i: Proceedings of the 12th International on Conference on emerging Networking EXperiments and Technologies, ACM Press, 2016, s. 473-480Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We analyse two complementary datasets to quantify the latency variation experienced by internet end-users: (i) a large-scale active measurement dataset (from the Measurement Lab Network Diagnostic Tool) which shed light on long-term trends and regional differences; and (ii) passive measurement data from an access aggregation link which is used to analyse the edge links closest to the user.

    The analysis shows that variation in latency is both common and of significant magnitude, with two thirds of samples exceeding 100, ms of variation. The variation is seen within single connections as well as between connections to the same client. The distribution of experienced latency variation is heavy-tailed, with the most affected clients seeing an order of magnitude larger variation than the least affected. In addition, there are large differences between regions, both within and between continents. Despite consistent improvements in throughput, most regions show no reduction in latency variation over time, and in one region it even increases.

    We examine load-induced queueing latency as a possible cause for the variation in latency and find that both datasets readily exhibit symptoms of queueing latency correlated with network load. Additionally, when this queueing latency does occur, it is of significant magnitude, more than 200\,ms in the median. This indicates that load-induced queueing contributes significantly to the overall latency variation.

  • 60. Jonsson, Andreas
    et al.
    Folke, Mats
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    The split naming/forwarding network architecture2003Konferansepaper (Fagfellevurdert)
  • 61.
    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 IoT2015Annet (Annet vitenskapelig)
  • 62.
    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 Networks2016Inngår i: : 2016 13th IEEE Annual Consumer Communications & Networking Conference (CCNC), 2016, 10, s. 882-888Konferansepaper (Fagfellevurdert)
    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.

  • 63.
    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 Networking2015Annet (Annet vitenskapelig)
    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.

  • 64.
    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 Championship2015Inngår i: 11th Swedish National Computer Networking Workshop (SNCNW 2015), Karlstad, Sweden, 2015, 6Konferansepaper (Fagfellevurdert)
  • 65.
    Malik, Adeel Mohammad
    et al.
    Ericsson, Sweden.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ohlman, Börje
    Ericsson, Sweden.
    NetInf Live Video Streaming for Events with Large Crowds2015Inngår i: Proceedings of the 2nd ACM Conference on Information-Centric Networking (ACM-ICN '15), Paris, France, 2015, 6, s. 209-210Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Information Centric Networking (ICN) aims to evolve the Internet 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 the event. 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 tests were carried out over several days during a major sports event. Our system streams videos successfully with low delay and communication overhead compared with existing Internet streaming services. It can scale to support several thousands of simultaneous users at a time and is well-suited for events with large crowds and flash crowd scenarios.

  • 66.
    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 streaming2015Inngår i: 2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW), 2015, 10, artikkel-id 7169800Konferansepaper (Fagfellevurdert)
    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.

  • 67. Nielsen, Johan
    et al.
    Galis, Alex
    Abrahamsson, Henrik
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Brunner, Marcus
    Cheng, Lawrence
    Colas, Jorge Andres
    Csaba, Simon
    Prieto, Alberto Gonzalez
    Gunnar, Anders
    RISE., Swedish ICT, SICS.
    Molnar, Gergely
    Szabo, Robert
    Management Architectures and Approaches for Ambient Networks2004Inngår i: WWRF12 Meeting, 2004, 1Konferansepaper (Fagfellevurdert)
  • 68. 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 storage2010Annet (Annet vitenskapelig)
    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.

  • 69. Schütz, Simon
    et al.
    Abrahamsson, Henrik
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Brunner, Marcus
    Design and Implementation of the Node Identity Internetworking Architecture2010Inngår i: Computer Networks, ISSN 1389-1286, E-ISSN 1872-7069, Vol. 54, s. 1142-1154Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The Internet Protocol (IP) has been proven very flexible, being able to accommodate all kinds of link technologies and supporting a broad range of applications. The basic principles of the original Internet architecture include end-to-end addressing, global routeability and a single namespace of IP addresses that unintentionally serves both as locators and host identifiers. The commercial success and widespread use of the Internet have lead to new requirements, which include Internetworking over business boundaries, mobility and multi-homing in an untrusted environment. Our approach to satisfy these new requirements is to introduce a new Internetworking layer, the node identity layer. Such a layer runs on top of the different versions of IP, but could also run directly on top of other kinds of network technologies, such as MPLS and 2G/3G PDP contexts. This approach enables connectivity across different communication technologies, supports mobility, multi-homing, and security from ground up. This paper describes the Node Identity Architecture in detail and discusses the experiences from implementing and running a prototype.

  • 70. Schütz, Simon
    et al.
    Abrahamsson, Henrik
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Brunner, Marcus
    Design and implementation of the node identity internetworking architecture2008Rapport (Annet vitenskapelig)
    Abstract [en]

    The Internet Protocol (IP) has been proven very flexible, being able to accommodate all kinds of link technologies and supporting a broad range of applications. The basic principles of the original Internet architecture include end-to-end addressing, global routeability and a single namespace of IP addresses that unintentionally serves both as locators and host identifiers. The commercial success and widespread use of the Internet have lead to new requirements, which include internetworking over business boundaries, mobility and multi-homing in an untrusted environment. Our approach to satisfy these new requirements is to introduce a new internetworking layer, the node identity layer. Such a layer runs on top of the different versions of IP, but could also run directly on top of other kinds of network technologies, such as MPLS and 2G/3G PDP contexts. This approach enables connectivity across different communication technologies, supports mobility, multi-homing, and security from ground up. This paper describes the Node Identity Architecture in detail and discusses the experiences from implementing and running a prototype.

  • 71. Su, Gang
    et al.
    Hidell, Markus
    Abrahamsson, Henrik
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Li, Dan
    Sjödin, Peter
    Tanyingyong, Voravit
    Xu, Ke
    Resource management in radio access and IP-based core networks for IMT advanced and beyond2013Inngår i: Science China Information Sciences, ISSN 1674-733X, E-ISSN 1869-1919, Vol. 56, s. 169-184Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The increased capacity needs, primarily driven by content distribution, and the vision of Internet-of-Things with billions of connected devices pose radically new demands on future wireless and mobile systems. In general the increased diversity and scale result in complex resource management and optimization problems in both radio access networks and the wired core network infrastructure. We summarize results in this area from a collaborative Sino-Swedish project within IMT Advanced and Beyond, covering adaptive radio resource management, energy-aware routing, OpenFlow-based network virtualization, data center networking, and access network caching for TV on demand.

  • 72.
    Tanyingyong, Voravit
    et al.
    KTH Royal Institute of Technology, Sweden.
    Olsson, Robert
    KTH Royal Institute of Technology, Sweden.
    Hidell, Markus
    KTH Royal Institute of Technology, Sweden.
    Sjödin, Peter
    KTH Royal Institute of Technology, Sweden.
    Ahlgren, Bengt
    RISE - Research Institutes of Sweden, ICT, SICS.
    Implementation and Deployment of an Outdoor IoT-Based Air Quality Monitoring Testbed2018Inngår i: 2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings, Institute of Electrical and Electronics Engineers Inc. , 2018Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper presents an outdoor IoT-based air quality monitoring testbed deployed in the city of Uppsala, Sweden. Our IoT sensing unit is designed and developed using low-cost hardware components and open source software, which makes it easy to replicate. We demonstrate that it can serve as an affordable solution for real-time measurements and has potential to complement traditional monitoring to cover larger areas. We use low-power communication based on IEEE 802.15.4, RPL, and MQTT, and achieve high end-to-end delivery ratio (>98%) in an outdoor setting. Moreover, we carry out network analysis of our testbed and provide detailed insights into its characteristics.

  • 73.
    Voigt, Thiemo
    et al.
    RISE., Swedish ICT, SICS, Computer Systems Laboratory.
    Ahlgren, Bengt
    RISE., Swedish ICT, SICS, Decisions, Networks and Analytics lab.
    Scheduling TCP in the Nemesis operating system1999Konferansepaper (Fagfellevurdert)
  • 74. 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 ICN2015Annet (Annet vitenskapelig)
    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.

  • 75. 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-012016Annet (Annet vitenskapelig)
    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.

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