TRIDENTCOM 2011
INFINITY 2012

    TRIDENTCOM

    Testbeds and Research Infrastructure. Development of Networks and Communities. 7th International ICST Conference,TridentCom 2011, Shanghai, China, April 17-19, 2011, Revised Selected Papers

    The 7th International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities (TridentCom 2011) will bring together technical experts and researchers from academia, industry and government all around the world to discuss multimedia, optical, wireless…

    The 7th International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities (TridentCom 2011) will bring together technical experts and researchers from academia, industry and government all around the world to discuss multimedia, optical, wireless, network technologies and business opportunities, with a TridentCom 2011 conference theme "To be One-connect and communicate with Global testbeds".

    more »
    Editor(s): Thanasis Korakis, Hongbin Li, Phuoc Tran-Gia and Hong-Shik Park
    Publisher
    Springer
    ISBN
    978-3-642-29273-6
    Conference dates
    17th–19th Apr 2011
    Location
    Shanghai, China
    Appeared in EUDL
    29th May 2012
    Appears in
    SpringerLink

    Copyright © 2012–2013 ICST

    • A Framework and Experimental Study for Discrimination of Collision and Channel Errors in Wireless LANs

      Research Article in Testbeds and Research Infrastructure. Development of Networks and Communities. 7th International ICST Conference,TridentCom 2011, Shanghai, China, April 17-19, 2011, Revised Selected Papers

      Georgios Kyriakou, Donatos Stavropoulos, Iordanis Koutsopoulos, Thanasis Korakis, Leandros Tassiulas

      Abstract
      A fundamental unresolved problem in wireless networks is that of distinguishing packet errors that are caused by deteriorated link conditions and noise, from errors that occur due to packet collision…A fundamental unresolved problem in wireless networks is that of distinguishing packet errors that are caused by deteriorated link conditions and noise, from errors that occur due to packet collisions. In this paper, we develop advanced algorithms based on Cyclic Redundancy Check (CRC) [10] that solve this problem. Specifically, our innovation is that we form multiple CRCs, each of which is responsible for a different segment in a packet. The CRCs are appended after each segment. In this way, we can essentially visualize the pattern of errors across the packet. If the number of successive erroneous segments exceeds a threshold, we decide in favor of a collision. We integrate our approach with SampleRate. Our approach is implemented in MadWiFi [7] and is validated through realistic test-bed experiments. Our technique is shown to significantly outperform current error identification techniques, while having low complexity, and it constitutes an approach that can be readily incorporated in existing wireless protocols.
       more »

    • A Path to Evolve to Federation of TestBeds

      Research Article in Testbeds and Research Infrastructure. Development of Networks and Communities. 7th International ICST Conference,TridentCom 2011, Shanghai, China, April 17-19, 2011, Revised Selected Papers

      Soner Sevinc

      Abstract
      Federating the numerous existing networking testbeds offers multiple possible benefits, but so far testbeds and federation efforts remained semi-independent, and not wholly united as a single federat…Federating the numerous existing networking testbeds offers multiple possible benefits, but so far testbeds and federation efforts remained semi-independent, and not wholly united as a single federation. We identify several problems against federation, namely, establishing new trust relations and agreeing on a common schema between the entities. In this paper we explore practical ways to set up federations by making use of the existing organization to user, and inter-organizational trust relations. First we give an analysis of the existing testbeds and federations in terms of their trust models, and the set of technologies they use. Next, we argue for a design of a federation which leverages existing trust relationships. Our prototype implementation shows how readily this design can be implemented using a minimal set of schema and technologies being used by the existing testbeds and federations. Using our analysis we then show how this design can be expanded for larger scale federations, and give examples of possible future trust models.
       more »

    • A Portal to Support Rigorous Experimental Methodology in Networking Research

      Research Article in Testbeds and Research Infrastructure. Development of Networks and Communities. 7th International ICST Conference,TridentCom 2011, Shanghai, China, April 17-19, 2011, Revised Selected Papers

      Guillaume Jourjon, Thierry Rakotoarivelo, Max Ott

      Abstract
      Whilst dealing with topics that are more and more influenced by physical properties of the underlying media, the networking community still lacks a culture of rigorous result verification. Indeed, as…Whilst dealing with topics that are more and more influenced by physical properties of the underlying media, the networking community still lacks a culture of rigorous result verification. Indeed, as opposed to most of the science and engineering fields there are very few benchmarks to test protocols against. Furthermore, in most publications the authors do not give the community access to the raw results or details of the performed experimental procedures. Therefore it is impossible to accurately reproduce their experiments. We propose to solve this problem by extending the state of the art experiment tool OMF with a public portal. This portal, while providing the experimenter with access to experimental resources, also provides the community with a system for comprehensive experiment description and result verification. The collection of both the measurement set and the experiment’s description is done in a transparent manner for the experimenter, who can decide to publish them via the portal once the research is mature enough.
       more »

    • A Radio Spectrum Measurement Platform for Spectrum Surveying in Cognitive Radio

      Research Article in Testbeds and Research Infrastructure. Development of Networks and Communities. 7th International ICST Conference,TridentCom 2011, Shanghai, China, April 17-19, 2011, Revised Selected Papers

      Miguel López-Benítez, Fernando Casadevall

      Abstract
      This paper presents a sophisticated radio spectrum measurement platform specifically envisaged and designed for spectrum occupancy surveys in the context of Dynamic Spectrum Access/Cognitive Radio (D…This paper presents a sophisticated radio spectrum measurement platform specifically envisaged and designed for spectrum occupancy surveys in the context of Dynamic Spectrum Access/Cognitive Radio (DSA/CR). The presented tool is a very flexible computer- controlled radio measurement system, which has successfully been used in extensive spectrum measurement campaigns and empirical studies in the context of the DSA/CR technology. An exhaustive and in-depth description of the developed measurement platform is provided, with a special emphasis on implementation details and lessons learned during the development of the tool that may result helpful to other researchers and engineers in the development of similar radio spectrum measurement tools.
       more »

    • A Service Oriented Experimentation Framework for Virtualized WiMAX Systems

      Research Article in Testbeds and Research Infrastructure. Development of Networks and Communities. 7th International ICST Conference,TridentCom 2011, Shanghai, China, April 17-19, 2011, Revised Selected Papers

      Gautam Bhanage, Ivan Seskar, Dipankar Raychaudhuri

      Abstract
      Testbeds for networking research allow experimenters to validate performance of algorithms and architectures under realistic conditions. Further, virtualizing such testbeds allows the deployer to imp…Testbeds for networking research allow experimenters to validate performance of algorithms and architectures under realistic conditions. Further, virtualizing such testbeds allows the deployer to improve utilization of the testbed while preserving reproducibility of the results and originality of the control environment. This paper describes an essential set of services for deploying a virtualized wireless testbed. It proposes (1) environment control, (2) virtual radio control, (3) slice feedback, and (4) a virtual radio isolation service as four fundamental services required for deploying these virtualized wireless testbeds. Using a virtualized WiMAX basestation as an example, this paper describes the design of the and the grid services which encompass the four fundamental services.
       more »