Random Network Coding for Unicast in Wireless Cellular Network

With Network Coding, a source can multicast information at a rate approaching the smallest minimum cut between the source and any terminal through encoding the incoming packets at intermediate node. On the other hand, in current wireless systems, terminals could receive multiple cells signal, but only registered cell´s packets could be used, and others are dropped as useless or noise. This traditional way didn´t make full use of information received by terminals. In this paper, a new transmission scheme using random network coding (RNCT) is introduced, in which all signals received by terminal are useful. Simulations show that this new scheme can improve spectral efficiency and wireless system throughput significantly than current transmission scheme (CTS).