摘要
当前许多研究表明,随机网络编码技术应用到无线分组交换网络中可以提高通信的可靠性,但是现有的这些编码策略一般都存在吞吐率不高和网络资源浪费等问题,在M.Medard等人的网络编码策略的基础上提出"邻域编码策略".该策略利用无线信道的广播特性,能提高网络吞吐率、节约无线网络资源.而且在多跳网络中邻域编码策略的优势会更为显著.本文还结合超图模型从理论上给出邻域编码策略在无线网络的传输速率上限.
Network coding has been designed for wireless networks to improve the reliability, at the same time, many problems occurred., low throughput, and waste of network resources. Based on the work by M. Medard et al. , a new scheme： ＂Neigh- borhood Network Coding Scheme＂ is been designed. This scheme makes use of the broadcast nature of wireless channel, which can provide higher throughput and decrease the waste network resources. Further more, benefits are more obvious when neighborhood network coding scheme is used in multi-hop networks. Then, the upper bound of packet rate of the scheme is given with hypergraph mode.
出处
《小型微型计算机系统》
CSCD
北大核心
2009年第6期1077-1081,共5页
Journal of Chinese Computer Systems
基金
国家自然科学基金项目(60803005)资助
关键词
网络编码
无线网络
可靠性
广播特性
吞吐率
network coding
wireless networking
reliability
broadcast nature
throughput
