Multi hop wireless networks face many challenges basically the limitation of bandwidth, loss of packets because of many problems in wireless medium also loss of paths because of the random and unpredictable movement of wireless nodes, which reduce the performance of these networks. Recently, Network coding has been used as promising technology that achieves the reliable transfer of data in wireless networks with high throughput. Considering the efficiency of this technology and with benefiting from both the same cost paths and the broadcasting property of wireless medium, a multi transmission mechanism for random linear network coding has been proposed in multi hop wireless networks, which depends on multicasting of coded packets on the same cost paths.