Blind recognition of orthogonal and non-orthogonal space-time block codes based on JADE and feature extraction

被引：1
|
作者：
Zhang T. [1 ,2 ]
Fan C. [1 ,2 ]
Yu S. [1 ,2 ]
Zhao J. [1 ,2 ]
机构：
[1] School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing
[2] Chongqing Key Laboratory of Signal and Information Processing, Chongqing University of Posts and Telecommunications, Chongqing
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2020年 / 42卷 / 04期
关键词：
Blind recognition; Feature extraction; Joint approximate diagonalization of eigenvalue matrix (JADE); Non-orthogonal space-time block code (NOSTBC); Orthogonal space-time block code (OSTBC);
D O I：
10.3969/j.issn.1001-506X.2020.04.26
中图分类号：
学科分类号：
摘要：
Aiming at the blind recognition of orthogonal space-time block codes (OSTBC) and non-orthogonal space-time block codes (NOSTBC) in non-cooperative multiple input multiple output communication systems, a blind recognition method combining joint approximate diagonalization of eigenvalue matrix (JADE) and feature extraction is proposed. Firstly, the received signal is transformed into a linear instantaneous hybrid model in blind source separation problem. Then the virtual channel matrix of the model is estimated by the JADE algorithm. According to the characteristic that the correlation matrix of the channel matrix is a quantitative matrix, the characteristic parameters are extracted from the correlation matrix, and the characteristic parameters are used to identify OSTBC and NOSTBC. The simulation results show that the proposed method can effectively recognize OSTBC and NOSTBC under low signal-to-noise ratio (SNR) and different modulation modes. © 2020, Editorial Office of Systems Engineering and Electronics. All right reserved.
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页码：933 / 939
页数：6
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