基于网络编码的无线网络低冗余数据广播协议

Network coding based low-redundancy data broadcasting protocol in wireless networks

现有的基于网络编码的洪泛协议缺乏高效的冗余数据控制机制,针对该问题,研究在典型多跳无线网络场景下冗余编码包的问题;在此基础上,提出基于网络编码的低冗余数据广播(NCLRB)协议,通过判别邻居节点数据包编码系数,使节点能够确定邻居的接收状态,减少冗余数据包的广播概率。仿真结果表明,NCLRB能够有效降低冗余数据包的广播,提高数据包的分发效率。

Most existing network-coding based flooding protocols lack methods for reducing redundant data.To address this problem,the investigation of redundant encoded data problem was carried out in a typical multi-hop wireless network scenario.On this basis,a network coding based low-redundancy data broadcasting（NCLRB）protocol was proposed.By discriminating neighbor node packet coded coefficients,a receiver determined the status of its neighboring nodes,thereby reducing redundant broadcast packets.Simulation results demonstrate that,NCLRB can not only effectively reduce the number of redundant packets,but also improve packet distribution efficiency.