【摘要】 介绍了正交频分复用(OFDM)基带传输系统及其模型,概述了LDPC的编译码方法,研究了其在OFDM系统中的性能,并与卷积码进行了比较.仿真表明,LDPC码在OFDM基带传输系统中具有更好的纠错能力.更多还原

【Abstract】 In this paper an OFDM based transmission system and its model are introduced;the encoding/decoding methods of LDPC code are described.The performance of the OFDM system based on LDPC code is further studied and compared with that of another OFDM system using the convolutional code.Simulation results show that the former has much stronger error correcting capability than the latter.更多还原