Performance Analysis of Wireless Network Maximum Throughput Based on Network Coding

Network coding has shown the promise of significance throughput improvement. In this paper, we study the throughput of two-hop wireless network coding and explore how the maximum throughput can be achieved under a random medium access scheme. In this paper, the problem of the performance of COPE type network coding under dual source coding architecture is solved. An Embedded Markov Chain Model for Coding Nodes is used for our research purpose. Our research shows that the maximum normalized throughput subject to fairness requirement is n/ n+2, where n is the number of transmitters and 2 is the number of dual source coding numbers of wireless network. What is more, the conclusions show that the actual factors that affect the coding performance include the channel access priority and link scheduling rules of the coding node, and the relationship between the channel access priority and network throughput is investigated. The maximum throughput of the wireless network under the dual coding architecture is proved by the simulation examples. This conclusion provides guidance for further designing routing / MAC based on network coding.