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    题名: Infrastructure Based Chord Structure for P2P File Sharing over Vehicular Network
    作者: 張宏慶
    Jang,Hung-Chin
    Hsu,Tzu-Yao
    贡献者: 資科系
    关键词: vehicular network;vehicle to road side unit (V2R);peer-to-peer (P2P);multi-layer chord
    日期: 2013-03
    上传时间: 2014-09-02 17:18:43 (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 over vehicular network. Therefore, how to search files effectively, how to share files with distant vehicles, how to fully utilize the limited bandwidth, etc. have became important issues. 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.
    關聯: Journal of Networks,8(3),588-597
    数据类型: article
    DOI 連結: http://dx.doi.org/10.4304/jnw.8.3.588-597
    DOI: 10.4304/jnw.8.3.588-597
    显示于类别:[資訊科學系] 期刊論文

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