Analysing Performance of Nonlinear EqualizerBased on Multilayer Perceptron for OFDMPower-Line Communication

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering

article

V.M. Ramaa Priyaa¹ 

[1] Dept. of E&I, Bharath University

关键词: orthogonal frequency-division multiplexing (OFDM);    power-line communication (PLC);    multiplayer perceptron;    nonlinear equalization;    Mean square error (MSE);   

来源: Research & Reviews

【 摘 要 】

A high-speed data-communication over low-voltage power line has become a hot research topic for electrical advancements in recent years. Power-line communication (PLC), based on orthogonal frequency-division multiplexing (OFDM), is developing rapidly. OFDM is used for high speed data communications. However, it is unable to deal with the orthogonality degradation between the sub channels due to the time-variant characteristics of the multipath power-line channels, which is known as the Inter Channel Interference (ICI) problem. In this paper we propose a nonlinear equalizer based on Multilayer Perceptron trained with a mean square error (MSE) criterion to eliminate the ICI. In this paper first linear equalizer is designed with LMS algorithm. We compare the performance of linear equalizer and nonlinear equalizer based on constellation error probability.

【 授权许可】

Unknown