A New Adaptive Network Coded Cooperation Strategy

In the adaptive network coded cooperation strategy the concepts of network coding and cross-layer design is introduced into the user cooperation,and the network topology is mapped to the coding structure of LDPC (low-density parity-check) codes,thus achieving performance improvement in large wireless relay network.In this paper,the structure of LDPC codes in the original strategy is analyzed.Based on this,a new adaptive network coded cooperation strategy is proposed,which overcomes the deficiency in the original strategy by taking full advantage of information from various users.Performance analysis and simulation results show that,as compared with the original strategy,this new strategy has achieved greater performance improvement without any additional system consumption.