RECMAC: Reliable and efficient cooperative cross-layer MAC scheme for vehicular communication based on random network coding technique

E. Eze, Sijing Zhang, E. Liu, Emmanuel N. Nweso, E. C. Joy
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引用次数: 5

Abstract

In an unreliable cluster-based, broadcast-oriented vehicular network setting, we investigate the transmission reliability and throughput performance of random network coding (RNC) as a function of the packet generate rate. Our proposed model consists of a source vehicle broadcasting packets to a set of receivers (i.e. one-to-many) over independent broadcast erasure channels. The source vehicle performs RNC on N packets and broadcasts the encoded message to a set of receivers. In each hop, several vehicles form a cluster and cooperatively transmit the encoded or re-encoded packet. The combination of RNC, cluster based, and cooperative communications enables RECMAC to optimally minimize data redundancy, which means less overhead, and improve reliability as opposed to existing coding-based solutions. Theoretic analyses and simulation results show that RECMAC scheme can achieve optimal performance in terms of transmission reliability and throughput.
RECMAC:基于随机网络编码技术的可靠高效的车辆通信跨层协作MAC方案
在一个不可靠的基于集群的面向广播的车载网络设置中,我们研究了随机网络编码(RNC)的传输可靠性和吞吐量性能作为数据包生成速率的函数。我们提出的模型由一个源车辆通过独立的广播擦除通道向一组接收器广播数据包(即一对多)组成。源车辆对N个数据包执行RNC,并将编码的消息广播给一组接收器。在每一跳中,几辆车组成一个集群,共同传输编码或重新编码的数据包。RNC、基于集群和协作通信的组合使RECMAC能够最大限度地减少数据冗余,这意味着更少的开销,并提高可靠性,而不是现有的基于编码的解决方案。理论分析和仿真结果表明,RECMAC方案在传输可靠性和吞吐量方面都能达到最优的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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