无线和电力线混合通信的MAC层接入算法设计和性能分析  

Design and Performance Analysis of MAC Layer Access Algorithms for Hybrid Communication of Wireless and Power Line

作　　者：黄鑫 卞宝银 杨鸿珍 陈佩茹 左嘉烁 李秀彩 赵豫京 HUANG Xin;BIAN Baoyin;YANG Hongzhen;CHEN Peiru;ZUO Jiashuo;LI Xiucai;ZHAO Yujing(State Grid Electric Power Research Institute,Nari Group Corporation,Nanjing 211006,Jiangsu Province,China;Information and Communication Branch,State Grid Zhejiang Electric Power Company,Hangzhou 310020,Zhejiang Province,China;Department of Electronic and Communication Engineering,North China Electric Power University,Baoding 071003,Hebei Province,China;Information and Communication Branch,State Grid Henan Electric Power Company,Zhengzhou 450000,Henan Province,China)

机构地区：[1]南瑞集团有限公司国网电力科学研究院有限公司,江苏省南京市211006 [2]国网浙江省电力有限公司信息通信分公司,浙江省杭州市310020 [3]华北电力大学电子与通信工程系,河北省保定市071003 [4]国网河南省电力公司信息通信公司,河南省郑州市450000

出　　处：《电力信息与通信技术》2024年第1期77-85,共9页Electric Power Information and Communication Technology

基　　金：国家电网有限公司总部管理科技项目资助“电力5G业务接入能力评估及规划仿真技术研究”(SGZJXT00JSJS2100551)。

摘　　要：电力线和无线混合通信可以优势互补提升电力物联网室内覆盖的综合性能。针对无线接入和电力线中继的混合通信场景,文章提出一种适用于两跳混合中继的通用MAC层算法。综合考虑物理层信道参数和MAC层的载波侦听多路访问(carrier sense multiple access,CSMA)退避流程,建立了该MAC层算法的跨层性能分析模型,推导了两跳传输系统归一化吞吐量以及系统时延等性能;最后仿真验证了算法有效性和模型准确性,分析了物理层和MAC层关键参数影响系统性能的机理。与Basic-RTS/CTS算法相比,所提算法可有效提升系统吞吐量和时延性能。Hybrid communication of wireless and power line can complement each other to improve the comprehensive performance of power IoT indoor coverage.Aiming at the hybrid communication scenario of wireless access and power line relay,this paper proposes a general MAC layer algorithm suitable for two-hop hybrid relay.Considering the channel parameters of the physical layer and the CSMA retreat process of the MAC layer,the cross-layer performance analysis model of the MAC layer algorithm was established,and the normalized throughput and system delay of the two-hop transmission system were deduced.Finally,the simulation verifies the effectiveness of the algorithm and the accuracy of the model,and analyzes the mechanism that the key parameters of the physical layer and MAC layer affect the system performance.Compared with Basic-RTS/CTS algorithm,the proposed algorithm can effectively improve the system throughput and delay performance.

关 键 词：混合通信 中继传输 MAC层算法 PHY-MAC跨层分析 

分 类 号：TN915.853[电子电信—通信与信息系统]