多信道多接口智能路由协议研究

多信道多接口可以降低信道共用的干扰并且提高多跳无线Ad Hoc网络的吞吐量。提出一种信道分配与路由选择相结合的多信道多接口智能路由协议DMMR,DMMR综合考虑了链路生存时间、跳数以及节点距离。用LP标准,使路由选择标准在链路生存时间和最短路径之间取得均衡,这样选择的信道在移动环境中更加具有可靠性;用基于距离的信道选择算法选择信道,该信道选择算法首先估算节点间距离,根据估算到的距离选择合适的信道进行数据传输,从而提高信道的空间复用。和已经存在的路由协议相比,仿真结果表明在移动多跳Ad Hoc网络中该协议能够降低平均端到端延迟并且提高网络的吞吐量和包到达率。

Multi-channel multi-interface intelligent routing protocol

Multi-channel multi-interface can reduce co-channel interference and improve the multi-hop wireless Ad Hoc network throughput .A distance-based multi-radio multi-channel routing protocol （ DMMR） is proposed , which combines channel assignment and routing algorithms .The lifetime of the link , the link distance and the number of hops are considered by this protocol .An LP standard is used to make the choice of routing criteria in the link be-tween the lifetime and the shortest path strike a balance .In this way the selected channel in a mobile environment is more reliable .A channel is selected with distance-based channel selection algorithm , which first estimates the distance between nodes , then selects the appropriate channel for data transmission according to the estimation of the distance , thus improving reuse of spatial channel .Compared with existing routing protocols , the simulation results show that the mobile multi-hop Ad Hoc networks can reduce the average end-to-end delay and improve the through-put of the protocol and packet delivery ratio .