【摘要】 网络编码具有提高网络传输速率,逼近多播最大容量等优点。本文建立了一个无线环境下的网络编码模型Ncma,并提出了一种结合路由信息的编码节点选取方法,该方法比传统编码节点更简单、高效。对其实现是在现有的NS2系统上进行扩展,创建一个可以仿真各种网络编码算法的通用工具,为网络编码的进一步研究提供实验平台。更多还原

【Abstract】 Network coding could improve the transmission rate of network,almost realize the maximum capacity of multicast.The contributions are as follows: A model of network coding for wireless environment,named Ncma(Network Coding Model in Ad Hoc),is built,and then a method of choosing coding nodes is proposed based on Ncma.The operations of network coding are confined in a one-hop network by Ncma,and this makes the listening operation much easier which helps to reduce errors caused by the complex transmission routes.更多还原