The Network Coding Technology And Its Application In Wireless Communication Research

Network coding is proposed for the multicast communication problems.In order to obtain maximum flow limit of information for multicast networks,the routing information of different channels are encoded,the combination of the group are packaged,and then handed out,as far as possible to approximate the amount of information that can not reach the limits of traditional unicast network information transfer.This article is based on a wireless multicast network system to expand the research background,the research object is a specific application of network coding mode and multicast routing algorithm to achieve its function.The results of this study focuses on network coding multicast application model design,the improved algorithm design,performance analysis and simulation,while the application of the network coding algorithm multicast network routing simulation,and the simulation shows the algorithm for wireless multicast network system has a significant performance gain effect.First,this article analyzes the traditional network coding and multicast technology,elaborates the basic principles and key technology,in order to build a multi-mode communication model applies network coding,and modify the parameters for the model,use the variables control methods to examine the effect of the algorithm simulation performance.Secondly,based on the general multicast network coding method,this article quoted minimum path algorithm and discrete routing concepts,proposed algorithm optimized network coding of the entire process,mathematically proved that the optimization algorithm is correct and obvious advantages in terms of reduced complexity of the entire process,and on this basis to improve the traditional network-based coding Dijkstra routing algorithm.Finally,using the optimization of network coding algorithm,compared with non-web-based network coding and based traditional Dijkstra routing algorithm to carry on the simulation analysis,to verify the effect of the algorithm in the throughput,load balance and network reliability,and superiority of resource consumption,and for more than one network performance simulation principle and the results analyzed and summarized a number of factors that affect wireless multicast network,and gives a brief analysis method to evaluate network performance.This study verified the improved network coding algorithm and routing algorithm network performance can bring significant performance gains,especially the application of multicast system under a very big potential.Network coding in wireless multicast network to improve system performance plays an important role and has great prospect,improvement and optimization of network coding can bring other technology to achieve tremendous performance gains.