基于XOR和前向纠错的5G无线接入网络编码方案  

5G RAN coding scheme based on XOR network coding and forward correcting mechanism

作　　者：高倩[1] 王彩玲[1] 王畅 Gao Qian;Wang Cailing;Wang Chang(Henan Police College.Zhengzhou 450046,China;School of Information Engineering.North China University of Water Resources and Electric Power,Yangzhou 211414,China)

机构地区：[1]河南警察学院,郑州450046 [2]华北水利水电大学信息工程学院,扬州211414

出　　处：《国外电子测量技术》2022年第7期160-165,共6页Foreign Electronic Measurement Technology

基　　金：河南省科技攻关项目(212102210100)资助。

摘　　要：为满足工业应用对5G通信系统的可靠性和延迟要求,提出了基于异或(XOR)编码和前向纠错机制的5G无线接入网络(RAN)编码方案,其中,将两个连续协议数据单元(PDU)通过XOR机制合并在一起,防止某条链路的传输错误扩散到PDU的其他副本。通过前向纠错机制,主动纠正任何两个同时发生的无线链路错误。由此在分组传输中增强了解码关联性,提高无线链路故障情况下的分组恢复能力。并提出编码重传自适应切换策略,进一步平衡通信量需求和不同链路故障情况下的分组恢复性能。仿真结果表明,所提方案能够有效提高分组传输成功率,且通信成本效率优于其他优秀方法。To meet the reliability and delay requirements of 5 G communication systems for industrial applications,a 5 G radio access network(RAN)coding scheme based on XOR coding and forward error correction mechanism is proposed,in which two consecutive protocol data units(PDU)are combined together through XOR mechanism to prevent packet error of a certain link spread to other duplications of the PDU.Through the forward error correction mechanism,the proposed method proactively corrects any two simultaneous errors.As a result,the decoding reliance is realized in packet transmission,and the packet recovery reliability in the case of wireless link failure is improved.To further balance the reliability of transmitting two consecutive packets and the wireless resource demand,an adaptive coding and retransmission switching strategy is proposed.Simulation results show that the proposed scheme can effectively improve the success rate of packet transmission,and the communication cost has been significantly reduced compared to other methods.

关 键 词：5G通信 异或编码 协议数据单元 网络编码 前向纠错 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]