标题: Design and Evaluation of a Two-Tier Peer-to-Peer Traffic Information System
作者: Tsao, Shiao-Li
Cheng, Chien-Ming
资讯工程学系
Department of Computer Science
公开日期: 1-五月-2011
摘要: Decentralized traffic information systems realize real-time traffic information services without the need for a server infrastructure. However, existing systems rely on either the vehicular ad hoc network or application-layer peer-to-peer protocols over a broadband wireless network suffering from low lookup success rate, high lookup latency, and maintenance overhead of the P2P network. This article proposes a two-tier VANET/P2P architecture that exploits both VANET and P2P technology. In the low tier, vehicles form a VANET via intervehicle communication to exchange traffic information. On top of the VANET, a portion of the vehicles further establish a P2P overlay through a broadband wireless infrastructure to mitigate the disconnectivity problems of the VANET. Simulation results demonstrate that the two-tier architecture can significantly improve the lookup success rate compared to the single-tier VANET systems while reducing lookup latency and maintenance overhead compared to the single-tier P2P systems.
URI: http://dx.doi.org/10.1109/MCOM.2011.5762814
http://hdl.handle.net/11536/8931
ISSN: 0163-6804
DOI: 10.1109/MCOM.2011.5762814
期刊: IEEE COMMUNICATIONS MAGAZINE
Volume: 49
Issue: 5
起始页: 165
结束页: 172
显示于类别:Articles


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