基于时间复杂度的无线网络编码数据包传输次数优化分析

为了提高无线广播网络传输的稳定性,建立了一种基于时间复杂度的无线网络编码数据包传输次数优化网络模型。分析结果表明:随着节点数M不断增大,将获得更高的数据包传输次数。NCIF方案具有比CLIF更优的性能,并且比SRPSiF的性能也更好,采用NCIF方案可以获得更高的重传效率。NCIF方案具备比SRPS方案更优的性能,NCIF方案利用S生成编码包的过程中不考虑中继节点R产生的解码性,可以高效恢复目的节点的丢失数据包。当丢包率增大后,NCIF与CLIF方案都发生了性能降低的情况,降低了中继节点的作用。

Optimization analysis of wireless network coding packet transmission times based on time complexity

In order to improve the stability of wireless broadcast network transmission, an optimization network model based on the time complexity of wireless network encoding packet transmission times was established. The analysis results show that: with the increasing number of nodes M, more packets will be transmitted.The NCIF scheme has better performance than CLIF and SRPSiF. The NCIF scheme can achieve higher retransmission efficiency. NCIF scheme has better performance than SRPS scheme. In the process of generating coding packet by S, the decoding property generated by relay node R is not taken into account, and the lost packet of destination node can be recovered efficiently. When the packet loss rate increases, the performance of both NCIF and CLIF schemes decreases, reducing the role of relay nodes.