基于网络编码的多节点无线广播重传策略  

Multi-node wireless broadcasting retransmission scheme based on network coding

作　　者：肖潇[1] 杨路明[1] 蒲保兴[1] 

机构地区：[1]中南大学信息科学与工程学院,长沙410083

出　　处：《计算机应用》2008年第4期849-852,共4页journal of Computer Applications

基　　金：湖南省教育厅自然科学研究项目(05C671);中南大学重点创新基金资助项目(ZB018)

摘　　要：重传是无线网络广播实现错误处理的重要技术。将网络编码理论和无线网络重传技术的结合推广到了多个节点的情况,研究了多个节点情况下基于网络编码的重传组合策略,并运用该策略编码组合多个信息包发送,一次组合包重传操作可以实现原有策略多次操作的目的。模拟测试结果表明:与原有策略相比,该策略可以有效地减少信息包的传输次数,并且具备一定的可行性和有效性。Retransmission is an important technique to ensure the error correction of wireless broadcasting. The combination between network coding and wireless broadcasting scheme was extended to the multi-node mode. The combination strategy of multi-node based on network coding was studied. By combining several packets, the retransmission was accomplished. One retransmission with coding packets could achieve the goal for numerous original retransmissions. Simulation results indicate that compared with existing schemes, the proposed scheme can effectively reduce the average number of transmissions and is feasible and effective.

关 键 词：网络编码 无线广播重传 组合策略 

分 类 号：TP393.17[自动化与计算机技术—计算机应用技术]