无线多跳网络中编码及干扰感知的路由机制研究  

Interference and Network Coding Aware Routing Mechanism in Multi-hop Wireless Network

作　　者：王升辉[1] 刘振兆[1] 裘正定[1] 

机构地区：[1]北京交通大学信息科学研究所,北京100044

出　　处：《铁道学报》2013年第3期62-68,共7页Journal of the China Railway Society

基　　金：国家高技术研究发展计划(863计划)(2011AA110501);北京市自然科学基金(4112041);中央高校基本科研业务费专项资金(2011JBM229)

摘　　要：传统的编码感知路由在最大化编码机会的同时,也增加了无线网络节点间的干扰。本文提出的编码及干扰感知的路由机制ICAR(Interference&Coding-Aware Routing)则综合考虑了网络编码机会的增加与避免无线干扰间的均衡。仿真表明,以ICAR为路由量度的编码感知路由协议OICAR无论在网络吞吐量还是在端对端延时方面比传统的AODV及编码感知路由协议COPE、DCAR均有所提高。As the conventional network coding approach improves throughput by routing flow close to each other by utilizing coding opportunities in the wireless network, inter-node interference increases and leads to bad network performance. This paper proposed the interference ＆ coding-aware routing metric （ICAR）, which considered a trade-off between increased coding opportunities and decreased wireless interference in the multihop wireless network environment. With the simulation by NS2, we compared ICAR with other metrics which only considered the coding opportunity or interference. Simulation results show that ICAR achieves better throughput and less delay than AODV, COPE and DCAR.

关 键 词：网络编码 无线网络 路由协议 路由量度 

分 类 号：TN929.5[电子电信—通信与信息系统]