基于多径信道的宽带电力线通信性能分析
首发时间:2019-06-19
摘要:电力线通信是以电力线作为媒质来传递消息的一种通信方式。因为电力线通信在布线方面连接方便且成本不高,随着人们对网络传输质量的要求越来越高, 宽带电力线通信也成为关键技术之一。然而,由于电力线电缆的特性,使得电力线通信覆盖范围有限,还存在一些时变信道的衰减。本文首先对电力线信道特性进行了简化,然后通过对基于正交频分复用(OFDM)的宽带电力线通信(BPLC)系统的分析,以15路信道模型为例,得出了电力线信道的误码率(BER)与信噪比(SNR)的关系。
关键词: 宽带电力线通信(BPLC) 正交频分复用(OFDM) 误码率(BER) 信噪比(SNR)
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Performance Analysis of Broadband Power Line Communciation Based on Multipath Channel
Abstract: Power line communication is a communication mode that uses power line as medium to transmit messages. Because power line communication is convenient and inexpensive in wiring, broadband power line communication has become one of the key technologies with the increasing demand for network transmission quality. However, due to the characteristics of power lines and cables, power line communication coverage is limited, and there are some time-varying channel attenuation. Firstly, the characteristics of power line channel are simplified. Then, the relationship between BER and SNR of power line channel is obtained by analyzing the broadband power line communication (BPLC) system based on orthogonal frequency division multiplexing (OFDM) and taking 15 channel model as an example.
Keywords: Broadband Power Line Communication (BPLC) Orthogonal Frequency Division Multiplexing (OFDM) Bit Error Rate (BER) Signal-to-Noise Ratio (SNR)
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