多输入多输出宽带电力线载波通信信道模型研究  

Research on Broadband MIMO Power Line Communications Model

作　　者：曹旺斌[1] 尹成群[1] 谢志远[1] 梁晓林[1] 李雪彩 

机构地区：[1]华北电力大学电气与电子工程学院,河北省保定市071003

出　　处：《中国电机工程学报》2017年第4期1136-1141,共6页Proceedings of the CSEE

基　　金：国家自然科学基金项目(61172075);中央高校基本科研业务费专项资金(2014XS78)~~

摘　　要：该文提出一种多输入多输出(multi-input multi-output,MIMO)宽带电力线载波通信(power line communications,PLC)信道混合模型。该模型结合电力线载波通信信道自上而下和自下而上两种建模方法,考虑了多输入多输出载波信道的空间相关性,提供一种不需要完整载波网络拓扑信息和测量数据的先验电力线信道建模方法。给出了低压室内电力线载波通信信道模型算例,分析了算例在2~30MHz和2~100MHz两种带宽下的信道特征和参数,并与已有模型进行了对比。结果表明,在同等条件下该文模型与已有模型仿真结果一致,但克服了需要获得大量负载阻抗信息或大量测量数据建模的困难,为多输入多输出电力线载波通信提供了一种具有实用价值的仿真分析方法,对于简化多输入多输出电力线载波信道的研究、设计和工程应用具有重要意义。This paper proposed a broadband hybrid model for the multi-input multi-output indoor power line communications（MIMO-PLC） channel. The proposed model combined the top-down and bottom-up modeling approaches and provided a prior multi-input multi-output（MIMO） channel generator, which did not need the completed topological information of the network and channel measurements, and considered the spatial correlation of channel. Based on the proposed hybrid model and realized channel, the channel characteristics and parameters with 2～30 and 2～100 MHz bands were investigated further and were compared to the existing model. The results show that the proposed model overcomes the difficulties that the existing models needs a large amount of loads, impedances and measurements information. It provides a practical simulation analysis method for MIMO-PLC which is an important significance for MIMOPLC analysis and study.

关 键 词：电力线载波通信 多输入多输出 信道模型和参数 先验模型 宽带 

分 类 号：TN911.7[电子电信—通信与信息系统] TM74[电子电信—信息与通信工程]