A Novel Class of GF(2~P) Low-Density Parity-Check Coded OFDM System with MPSK

摘要

Channel coding techniques have been applied in OFDM systems to improve system bit error performance. In this paper, a novel class of GF(2~P) LDPC using sparse binary sequences coded OFDM system with MPSK is proposed. Simulations show that this system achieves better error rate performance than GF(2) LDPC coded OFDM system with MPSK both on AWGN channel and multi-path Rayleigh fading channel. Moreover, we adopt GF(2~P) LDPC codes constructed by sparse binary sequences to reduce encoding complexity and fast belief propagation (BP) decoding algorithm to reduce decoding complexity.