基于网络编码的无线网络广播重传方法  

Wireless broadcasting retransmission approach based on network coding

作　　者：肖潇[1] 王伟平[1] 杨路明[1] 张帅[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《通信学报》2009年第9期69-75,共7页Journal on Communications

基　　金：国家自然科学基金资助项目(60873265)~~

摘　　要：提出了一种适用于无线广播的基于网络编码的重传方法——NCWBR,通过网络编码组合不同的丢失包进行重传。理论分析表明,该方法能保证接收节点的编码可解性,同时重传次数较原方法更优;模拟测试结果表明,与逐个重传的方法相比,NCWBR有效地减少了信息包的平均传输次数,提高了传输效率。A novel retransmission approach in wireless broadcasting based on network coding （NCWBR） was presented, the key point of which was to combine different lost packets with network coding to achieve high efficient retransmission. Theoretical analysis reveals that the approach can ensure the solvability in the receiver nodes, and has better retransmission performance. Simulation results indicate that, comparing with existing approach, NWCBR can effectively reduce the average number of transmissions and improve the transmission efficiency.

关 键 词：无线网络广播 网络编码 重传 组合 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]