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信息工程大学 信息系统工程学院,河南 郑州 450002
[ "杜健(1978-),男,湖北襄阳人,信息工程大学讲师,主要研究方向为信道编码、盲信号处理。" ]
[ "巩克现(1975-),男,山东泰安人,博士,信息工程大学副教授,主要研究方向为通信信号处理等。" ]
[ "彭华(1971-),男,江西萍乡人,信息工程大学教授、博士生导师,主要研究方向为软件无线电、通信信号处理等。" ]
网络出版日期:2015-03,
纸质出版日期:2015-03-25
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杜健, 巩克现, 彭华. 基于CHASE译码思想的PCMA信号盲分离算法[J]. 通信学报, 2015,36(3):202-207.
Jian DU, Ke-xian GONG, Hua PENG. Algorithm for blind separation of PCMA based on CHASE decoding[J]. Journal of communications, 2015, 36(3): 202-207.
杜健, 巩克现, 彭华. 基于CHASE译码思想的PCMA信号盲分离算法[J]. 通信学报, 2015,36(3):202-207. DOI: 10.11959/j.issn.1000-436x.2015075.
Jian DU, Ke-xian GONG, Hua PENG. Algorithm for blind separation of PCMA based on CHASE decoding[J]. Journal of communications, 2015, 36(3): 202-207. DOI: 10.11959/j.issn.1000-436x.2015075.
在软输出逐幸存路径处理(SOVA-PSP)算法的基础上,提出了基于CHASE译码思想的载波成对复用多址(PCMA)信号的盲分离算法。该算法对SOVA-PSP软输出的结果进行可靠性排序,对于排序中可靠性较低的混合符号进行信号重构,通过重构信号和接收信号之间的欧式距离对比纠正其中的错误结果。仿真结果表明,所提算法与SOVA-PSP算法相比,性能有2 dB左右的增益。
On the basis of SOVA-PSP
a novel algorithm for blind separation of PCMA signal was presented based on CHASE decoding. The results of soft output of SOVA-PSP were sorted based on reliability in the algorithm
the mixed symbols that had low reliability in the sorted results were reconstructed. Compared the euclidian distance between recon-structed signal and received signal
the wrong results can be corrected. Simulation results show that compared with the SOVA-PSP algorithm
the novel algorithm can improve the gain of about 2 dB.
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