相关衰落信道Turbo乘积编码MDPSK的分集接收  

Diversity Reception of Turbo Product Coded MDPSK in Correlated Fading Channels

作　　者：魏涛[1] 刘伟[2] 

机构地区：[1]河南工程学院信息工程系,河南郑州451191 [2]河南科技大学电子信息工程学院,河南洛阳471003

出　　处：《通信技术》2008年第11期54-56,共3页Communications Technology

摘　　要：由于无线衰落信道中差分检测Turbo乘积编码调制具有良好的性能,文中研究了相关平坦Rayleigh衰落信道中差分检测Turbo乘积编码MDPSK信号的等增益分集,这种等增益分集接收无需任何信道状态信息。研究结果表明,等增益合并可以改善快衰落信道中TPC-MDPSK的错误平底效应,等增益分集合并的Turbo乘积编码的MDPSK信号在相关系数为0.5的平坦Rayleigh衰落信道中的性能和独立衰落信道中的系统性能相差仅1dB。The detection inelhod and performance of equal gain combining turbo product coded MDPSK （TPC MDPSK） in correlated Rayleigh-fading channels is studied. The equal gain combining TPC-MDPSK is realized without any channel state information. The results show that the EGC can reduce the error floor of TPC MDPSK in rapid fading channels. The performance of TPC-MDPSK with EGC in the correlated channel with correlated coefficient of 0.5 is only idB worse than the performance in independent fading channel

关 键 词：无线通信 差分检测 分集接收 TURBO乘积码 

分 类 号：TN911.22[电子电信—通信与信息系统]