To improve network spect ral efficiency , a network coding2aware met rics for wireless routing expected coding2aware t ransmission count ( ECTX) is proposed. In general , there are two steps in cod2 ing2aware routing communication : one is finding coding opportunity and network2coded node in the routing discovery phase , the other is determining the optimum path f rom the coding2available paths and the coding2unavailable ones. The expected coding2aware t ransmission count fairly quantifies the network coding gain while considering the wireless t ransmission conditions. We implement the ECTX routing in wireless mesh system in C + + and conduct extensive evaluation. Simulation result s illust rate that , compared with the ones which oblivious of coding gains using , the t ransmission efficiency can be sharply increased in the whole network and achieves 5 ～20 throughput gains.

具有网络编码意识的无线路由判据.pdf

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