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提出一种适用于多接口多信道无线网络的路由评价指标,DSRM.与传统的评价指标单纯注重网络吞吐量相比,DSRM采用整条路径的端到端时延作为评价指标,以适应日益频繁的时延敏感的应用需求.在DSRM中,综合考虑了网络传输过程中的竞争接入时延、基于等效带宽计算的传输时延、节点内的信道队列因素,并分析了整条路径的端到端重传时延.通过Qualnet仿真,证明了DSRM较WCETT、WEED等路由评价指标在平均端到端时延等网络性能参数上有了明显提升.
Proposed a multi-interface multi-channel wireless network routing evaluation index, DSRM.Compared with the traditional evaluation index purely network throughput, DSRM adopts the end-to-end delay of the entire path as the evaluation index to adapt to the increasingly frequent Of delay-sensitive applications.In DSRM, we consider the contention access delay during network transmission, the transmission delay based on equivalent bandwidth, the channel queue factors in the node, and analyze the whole path End-to-end retransmission delay.Through Qualnet simulation, it is proved that DSRM has significantly improved network performance parameters such as average end-to-end delay compared with WCETT and WEED.