天津科技大学学报
天津科技大學學報
천진과기대학학보
JOURNAL OF TIANJIN UNIVERSITY OF SCIENCE & TECHNOLOGY
2014年
3期
73-77
,共5页
车联网%网络断开%路边设施%广播%重新愈合时间
車聯網%網絡斷開%路邊設施%廣播%重新愈閤時間
차련망%망락단개%로변설시%엄파%중신유합시간
VANET%network disconnection%roadside unit%broadcast%re-healing time
针对车联网中的网络断开问题，在已有的携带转发机制的基础上，提出利用固定设施 RSU 旨在缩短节点间的重新愈合时间的广播协议。分2种情况详细分析了消息的传递过程和重新愈合时间的计算方法，并通过仿真实验与SCB、SCF机制进行对比。结果表明：基于路边设施的广播协议能够明显减少网络断开情形中的重新愈合时间。
針對車聯網中的網絡斷開問題，在已有的攜帶轉髮機製的基礎上，提齣利用固定設施 RSU 旨在縮短節點間的重新愈閤時間的廣播協議。分2種情況詳細分析瞭消息的傳遞過程和重新愈閤時間的計算方法，併通過倣真實驗與SCB、SCF機製進行對比。結果錶明：基于路邊設施的廣播協議能夠明顯減少網絡斷開情形中的重新愈閤時間。
침대차련망중적망락단개문제，재이유적휴대전발궤제적기출상，제출이용고정설시 RSU 지재축단절점간적중신유합시간적엄파협의。분2충정황상세분석료소식적전체과정화중신유합시간적계산방법，병통과방진실험여SCB、SCF궤제진행대비。결과표명：기우로변설시적엄파협의능구명현감소망락단개정형중적중신유합시간。
Aimed at the network disconnecting issue in VANET,on the basis of existing carry-forward mechanism,a new broadcasting protocol based on the use of fixed facility RSU was proposed to shorten the re-healing time between nodes. A detailed analysis was made about the delivery process of messages and the calculation method of re-healing time in two kinds of cases,and a comparison with SCB and SCF mechanisms through simulation experiments was conducted. The results showed that the new broadcasting protocol based on RSU can greatly reduce the re-healing time in the case of network dis-connection.
