An Efficient Multi-hop Broadcast Protocol for Emergency Messages Dissemination in VANETs

作     者：WU Libing NIE Lei FAN Jing HE Yanxiang LIU Qin WU Dan 

作者机构：State Key Laboratory of Software Engineering Wuhan University Computer School Wuhan University School of Computer Science University of Windsor 

出 版 物：《Chinese Journal of Electronics》 (电子学报(英文))

年 卷 期：2017年第26卷第3期

页      面：614-623页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 0838[工学-公安技术] 081001[工学-通信与信息系统] 

基　　金：supported by the National Natural Science Foundation of China(No.61472287,No.61572370) the Science and Technology Support Program of Hubei Province(No.2015CFA068) 

主　　题：Vehicular ad hoc networks(VANETs) Multi-hop broadcast Emergency messages dissemination Black-burst Multi-channel 

摘      要：Black-burst based multi-hop broadcast protocols are effective means to disseminate Emergency messages(EMs)in Vehicular ad hoc networks(VANETs).However,Clear to broadcast(CTB)collision will happen and reduce propagation *** at this problem,we propose a Black-burst and multi-channel based multihop broadcast(BMMB)*** with multiple antennas can transmit and sense black-burst at different channels simultaneously based on multi-channel *** with existing black-burst based methods,BMMB shortens the iterative procedure to find out the optimal *** one relay vehicle can be rapidly selected within the optimal segment without CTB *** enables alternative broadcast methods,i.e.,unidirectional broadcast and multi-directional broadcast for straight roads and intersections *** analysis is done for performance evaluation of BMMB,and simulation results demonstrate that BMMB performs better in terms of average one-hop delay and propagation speed.