Blind recognition of STBC-OFDM signals based on modified K-S test

被引：0
|
作者：
Ling Q. [1 ]
Zhang L.-M. [1 ]
Yan W.-J. [1 ]
机构：
[1] Institute of Information Fusion, Naval Aeronautical and Astronautical University, Yantai
来源：
Tongxin Xuebao/Journal on Communications | 2017年 / 38卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Cumulative distribution function; MISO communication system; Modified K-S test; STBC-OFDM signal;
D O I：
10.11959/j.issn.1000-436x.2017082
中图分类号：
学科分类号：
摘要：
Aiming at the problem that existed blind classification of STBC-OFDM in multiple input single output (MISO) communication system, an efficient method for blind classification of space-time block coded orthogonal frequency-division multiplexing (STBC-OFDM) signals based on modified Kolmogorov-Smirnov (K-S) test was proposed, when a single receiver antenna was employed at the receiver. Firstly, the model of received STBC-OFDM signals in MISO systems was given. Secondly, with the correlation of the coding matrix of STBC-OFDM signals, and the discrimination features function provided by the empirical cumulative distribution (CDFs) of the received OFDM blocks was constructed. Finally, the distance between CDFs was tested by the two-sample K-S test, which could blindly classify the STBC-OFDM signals. The proposed algorithm didn't need the estimation of channel, noise statistics and modulation type, and consequently, was well suited for non-cooperative communication context. Theoretical analysis and experimental verify its validity. © 2017, Editorial Board of Journal on Communications. All right reserved.
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页码：46 / 54
页数：8
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