基于编码拆分的跨网通信技术优化研究

Research on Cross-Network Communication Technology Optimization Based on Code Splitting

WeBee系统可以在物理层次上实现WiFi向ZigBee的跨网络通信,但是单次发送帧的接收率低、误码率高。在此背景下,介绍了一种基于循环前缀的编码拆分算法,其基本思路是将ZigBee前置码中的同步码序列进行分解,可以减少重复前缀操作时的差错,从而提高帧的接收率。通过实验,将优化方案与WeBee及FreeBee系统进行性能与误码率比对,得到合理结论,符合实验预期。

WeBee system can realize the cross-network communication from WiFi to ZigBee at the physical level,but because of the low reception rate of single sending frame,the bit error rate is high.In this context,this paper introduces a coding split algorithm based on cyclic prefix.The basic idea is to decompose the synchronization code sequence in ZigBee precode,which can reduce the error of repeated prefix operation and thus improve the rate of receiving frames.Through experiments,the optimized scheme was compared with WeBee and FreeBee systems in terms of performance and bit error rate,and a reasonable conclusion was obtained,which was in line with experimental expectations.