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    题名: Urban multi-layered chord for P2P over vehicular network
    作者: Jang, Hung-Chin;Hsu, T.-Y.
    張宏慶
    贡献者: 資科系
    关键词: Control message overheads;Delay Time;Download time;Limited bandwidth;Multi-layered;Network environments;Number of hops;P2P file sharing;Peer to peer;Peer-to-peer application;Research issues;Target vehicles;Traffic aware;Vehicular networks;vehicule to road side unit (V2R);Wired networks;Bandwidth;Distributed computer systems;Network architecture;Vehicle transmissions;Vehicles;Peer to peer networks
    日期: 2012
    上传时间: 2015-04-10 17:26:35 (UTC+8)
    摘要: Vehicular network is different from wired network due to its network environment changes rapidly. The connection lifetime between vehicles is usually short because vehicles move in high speeds. Hence, deploy peer-to-peer (p2p) applications over vehicular network is a challenging research issue. There are many problems confronted in p2p file sharing, e.g. how to search files effectively, how to share files with distant vehicles, how to fully utilize the limited bandwidth, etc. In this paper, we propose an infrastructure-based Urban Multi-Layered Chord (UML-Chord) architecture for p2p file sharing over an urban vehicular network. In this architecture, vehicles are grouped into clusters. A multi-layer chord is employed to manage both files information and clustered vehicles locations. Connection lifetime between vehicles is estimated on a traffic aware basis. Target vehicle selection considers connection lifetime, bandwidth, and vehicle transmission status. Simulations results show that UML-Chord outperforms Chord, clustered organization and overlay based approaches in terms of number of hops (per query), control message overhead, query delay time, average download time, and file complete ratio. © 2012 IEEE.
    關聯: 2012 International Conference on Selected Topics in Mobile and Wireless Networking, ICOST 2012
    10.1109/iCOST.2012.6271290
    数据类型: conference
    DOI 連結: http://dx.doi.org/10.1109/iCOST.2012.6271290
    DOI: 10.1109/iCOST.2012.6271290
    显示于类别:[資訊科學系] 會議論文

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