Research On Physical Layer Network Coding In Cooperation Communication

Collaborative communication is a new technology using virtual antenna technology to gaindiversity. Its three basic cooperative models have been proven that they can improve theperformance of system. Network coding is a new technology which contains the cooperationmethod, using the relay node processing the message can improve the performance of system.Channel coding has been used in the communication systems to reduce the bit error rate andimprove the link reliability. Joint network coding and channel coding is a new research spot.In the background of the cooperative communication, this paper researches and analysis the basiccooperation scheme, presents two improved cooperation scheme and promote the channel model ofcommunication system from three nodes to multiple nodes and analysis the channel capacity. Onthe base of cooperative communication using the network coding and derivate the formula ofsystem model’s outage and simulate the result. Promote the scheme of network coding ofcooperative communication form binary to non-binary and promote in the multiple userscooperative models, analysis and simulate the performance, result proves that using network codingin the cooperative communication system has better performance than direct using cooperation,binary network coding performance better than non-binary network coding. Research the LDPCcode which can using in the cooperative communication, research joint coding cooperation andchannel coding and simulate the performance. On the base of wireless cooperative communicationuse the joint LDPC code and network coding, analysis and simulate the performance and results.Last this paper research the joint channel network iterative decoding, the result proves that jointcoding scheme and joint iterative decoding scheme have good performances.