基于OFDM-OQAM系统的电力线通信信道特性分析
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引用本文:唐波,王阳,朱兵,韩辉,朱笔挥.基于OFDM-OQAM系统的电力线通信信道特性分析[J].计算技术与自动化,2019,(3):28-32
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唐波,王阳,朱兵,韩辉,朱笔挥 (国网黄山供电公司安徽 黄山 245000) 
中文摘要:针对电力线通信(PLC)中传统的OFDM技术频谱利用率低的问题。在简述OFDM-OQAM系统模型的基础上,对各子载波上的数据流和原始滤波器对应的频域以扩展的方式进行处理,通过定义原型滤波器频域响应并进行转变以实现多相网络,最后对OFDM和OFDM-OQAM在高白信道下的误码率性能、双选信道下的误码率性能、信号功率谱密度和系统计算复杂度进行仿真对比分析。
中文关键词:OFDM  OFDM-OQAM  频域扩展  多相网络
 
Analysis of Power Line Communication Channel Characteristics Based on OFDM-OQAM System
Abstract:Aiming at the problem of low spectrum utilization of traditional OFDM technology in power line communication(PLC). Based on a brief description of the model of OFDM-OQAM system, the data stream on each subcarrier and the corresponding frequency domain of the original filter are processed in an extended manner. The multi-phase network is realized by defining the frequency domain response of the prototype filter and transforming it. Finally,the BER performance and double selection of OFDM and OFDM-OQAM in high white channel are discussed. The BER performance, power spectral density and computational complexity of the system are simulated and compared.
keywords:OFDM  OFDM-OQAM  frequency domain expansion  multiphase network
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