摘要
针对车联网中不同种类数据的传输需求,该文提出一种V2V和5G蜂窝网络结合的混合消息传输机制及路由算法。将车联网中的数据包分为时延敏感型和非敏感型两种类型,利用5G蜂窝网低时延、高可靠性、网络覆盖范围广的优势,高效传输时延敏感型的数据消息。由于自组网比高性能的5G蜂窝网具有更低的成本,因此针对时延非敏感型数据包设计了一种基于公交车辅助的路由算法。为降低通信链路断开机率,提出邻居表的更新时间预测机制,通过大量的仿真实验验证了该方案的有效性。实验结果表明,该方案可以提高数据包的传输成功率,降低端到端传输时延,减小端到端的传输跳数。
For the different kinds of packet transmission requirements in vehicular ad-hoc network(VANET),this paper proposes a hybrid message transmission mechanism and routing algorithm combining vehicle to vehicle(V2V)and 5G cellular communications.The packets in VANETs are divided into two types:delay sensitive and delay insensitive.The delay-sensitive packets can be transmitted efficiently taking the advantages of 5G cellular network with low delay,high reliability and wide network coverage.Since the ad-hoc network has a lower cost than the 5G cellular network,a routing algorithm based on bus assistance is designed for delay insensitive data packets.In order to reduce the probability of communication link disconnection,a prediction mechanism for the update-time of the neighbor table is proposed.The effectiveness of the scheme is verified by a large number of simulation experiments.Simulation results show that the proposed routing scheme can improve the delivery ratio of packets,reduce the end-to-end delay and decrease end-to-end transmission hops.
作者
李波
刘雪
冯菁翠
孙罡
虞红芳
LI Bo;LIU Xue;FENG Jing-cui;SUN Gang;YU Hong-fang(Key Lab of Optical Fiber Sensing and Communications,University of Electronic Science and Technology of China,Chengdu,611731)
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2021年第3期321-331,共11页
Journal of University of Electronic Science and Technology of China
基金
国家重点研发计划(2019YFB1802800)。
