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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機工程學系 > 期刊論文 >  CoopGeo: A beaconless geographic cross-layer protocol for cooperative wireless ad hoc networks


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/83465


    Title: CoopGeo: A beaconless geographic cross-layer protocol for cooperative wireless ad hoc networks
    Authors: Teck Aguilar;Syue-Ju Syue;Vincent Gauthier;Hossam Afifi;Chin-Liang Wang
    教師: 王晉良
    Date: 2011
    Publisher: Institute of Electrical and Electronics Engineers
    Relation: IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, Institute of Electrical and Electronics Engineers, Volume 10, Issue 8, AUG 2011, Pages 2554-2565
    Keywords: DIVERSITY
    RELAY-SELECTION
    COMMUNICATION
    PERFORMANCE
    STRATEGIES
    CHANNELS
    ARQ
    Abstract: Cooperative relaying has been proposed as a promising transmission technique that effectively creates spatial diversity through cooperation among spatially distributed nodes. However, to achieve efficient communications while gaining full benefits from cooperation, more interactions at higher protocol layers, particularly the MAC (Medium Access Control) and network layers, are vitally required. This is ignored in most existing articles that mainly focus on physical (PHY)-layer relaying techniques. In this paper, we propose a novel cross-layer framework involving two levels of joint design-a MAC-network cross-layer design for forwarder selection (or termed routing) and a MAC-PHY for relay selection-over symbol-wise varying channels. Based on location knowledge and contention processes, the proposed cross-layer protocol, CoopGeo, aims at providing an efficient, distributed approach to select next hops and optimal relays to form a communication path. Simulation results demonstrate that CoopGeo not only operates properly with varying densities of nodes, but performs significantly better than the existing protocol BOSS in terms of the packet error rate, transmission error probability, and saturated throughput.
    Relation Link: http://www.ieee.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/83465
    Appears in Collections:[電機工程學系] 期刊論文
    [通訊工程研究所] 期刊論文
    [電腦與通訊科技研發中心] 期刊論文

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