【摘要】 根据北京地区的场测试结果 ,给出了适合于该地区的服从M分布的移动信道仿真模型 ,为研究中国地区的差错控制方案提供了平台 .在此基础上 ,研究了RS码与MPSK相结合的方案在此信道模型中的性能 .仿真结果表明 :在适应于北京地区的M衰落信道中 ,RS码与MPSK相结合方案在不增加频带带宽的前提下 ,与未编码的QPSK相比较 ,在Pb =1 0 - 3时 ,可有 1 0dB的编码增益 .更多还原

【Abstract】 Based on the field measurement results of Beijing area,the mobile channel model which obeys M distribution is given.This model provides a environment for the investigation of error control schemes in China.On this basis is studied the performance of the scheme composed of RS code and MPSK modulation over M fading channels.Simulation results show that the coding gain of this scheme can achieve 10 dB at bit error rates around 10 -3 compared with the uncoded QPSK in M fading channels.更多还原