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.-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.