基于DG-PSP的不同符号速率PCMA信号盲分离算法

doi:10.11959/j.issn.1000-436x.2017063

Abstract

Abstract:

A blind separation algorithm was proposed for PCMA signals with different symbol rates based on double grid per-survivor processing (DG-PSP).The channel states and two input signal components were treated as two dynamic grids,receiving mixed-signal reconstructed by respectively iterative updating the two groups of grid status,thus achieving blind signal separation.The joint iterative decoding separation structure was focused,and a detailed analysis and comparison under different error estimation of parameters was shown.The complexity of the algorithm is similar to the traditional PSP algorithm.Simulation results show that,a gain of about 2 dB in signal-noise ratio can be obtained after the first iteration at a bit error rate of 10^?2,and a gain of nearly 3 dB in signal-noise ratio can be obtained after the second iteration.

Key words: PCMA, different symbol rates, double grid, blind separation

CLC Number:

TN911.7

Yi-ming GUO,Hua PENG,Yong YANG,Xue-juan WEI,Hao WANG. Blind separation algorithm of PCMA signals with different symbol rates based on DG-PSP[J]. Journal on Communications, 2017, 38(3): 92-100.

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References 7

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Blind separation algorithm of PCMA signals with different symbol rates based on DG-PSP

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