標題: An Infrastructure-less Framework for Preventing Rear-End Collisions by Vehicular Sensor Networks
作者: Chen, Lien-Wu
Peng, Yu-Hao
Tseng, Yu-Chee
資訊工程學系
Department of Computer Science
關鍵字: Collision prevention;IEEE 802.11p;traffic safety;vehicular sensor network
公開日期: 1-三月-2011
摘要: We consider vehicular sensor networks (VSNs) consisting of a large number of sensor nodes deployed on vehicles to facilitate vehicular applications. We try to apply such VSNs to preventing rear-end collisions that are common accidents due to sharp stops. An infrastructure-less framework is proposed, which only relies on vehicles' onboard sensors to prevent such accidents. The proposed framework consists of a distributed warning protocol and a location-based backoff scheme. Vehicle-to- vehicle communications is used to form warning groups, where a warning group is a set of vehicles that drive along the same lane and every pair of adjacent cars is within a certain distance. Only single-hop transmissions are needed to join and leave a group, thus keeping the group maintenance overhead low. When a sudden brake event is detected in a warning group, the location-based backoff scheme can quickly propagate warning messages among its group members. Simulation results show that the proposed approach outperforms existing schemes.
URI: http://dx.doi.org/10.1109/LCOMM.2011.011811.100519
http://hdl.handle.net/11536/9214
ISSN: 1089-7798
DOI: 10.1109/LCOMM.2011.011811.100519
期刊: IEEE COMMUNICATIONS LETTERS
Volume: 15
Issue: 3
起始頁: 358
結束頁: 360
顯示於類別:期刊論文


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