中国电机工程学报2011，Vol.31Issue(4)：99-103,5.
降低电力线正交频分复用系统峰均比的方法
Peak-to-average Power Ratio Reduction Scheme for Orthogonal Frequency Division Multiplexing System in Power Line Communication Channels
肖丽萍 1韩平1
作者信息
- 1. 燕山大学信息科学与工程学院,河北省,秦皇岛市,066004
- 折叠
摘要
Abstract
Because of the shortcoming that the peak-toaverage power ratio (PAPR) based on scaled selective mapping (SLM) is larger than that of conventional SLM, an improved scheme is proposed. In the scheme, some of the input signals are scaled to low amplitudes by new decision circle to reduce PAPR of orthogonal frequency division multiplexing (OFDM) in power line communications (PLC). Based on ensuring the performance of bit error rate (BER) in PLC channels, the analysis and simulation results show that the modified scheme can reduce much more PAPR compared with the original scaled SLM scheme. The proposed scheme is simple, and the transmission efficiency is high. It is also convenient to be combined with other techniques in PLC and valuable to be applied.关键词
电力线通信/正交频分复用/峰均功率比/比例选择映射/误比特率/权值相位分类
信息技术与安全科学引用本文复制引用
肖丽萍,韩平..降低电力线正交频分复用系统峰均比的方法[J].中国电机工程学报,2011,31(4):99-103,5.
