Journal on Communications ›› 2015, Vol. 36 ›› Issue (3): 202-207.doi: 10.11959/j.issn.1000-436x.2015075

• Academic paper • Previous Articles     Next Articles

Algorithm for blind separation of PCMA based on CHASE decoding

Jian DU,Ke-xian GONG,Hua PENG   

  1. Institute of Information Engineering, Information Engineering University, Zhengzhou 450002, China
  • Online:2015-03-25 Published:2017-06-21
  • Supported by:
    The National Natural Science Foundation of China;The National Defense Foundation of China;The Base and Cutting-Edge Technology Research Project of Henan Province

Abstract:

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.

Key words: pared carrier multiple access(PCMA), per-survivor processing (PSP), CHASE decoding, single-channel blind source separation

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