Hierarchical space–time block codes signals classification using higher order cumulants

被引：0
|
作者：
Ling Qing [1 ]
Zhang Limin [1 ]
Yan Wenjun [1 ]
Kong Dongming [2 ]
机构：
[1] Institute of Information Fusion,Naval Aeronautical and Astronautical University
来源：
Chinese Journal of Aeronautics | 2016年 / 03期
关键词：
Blind classification; Fourth-order cumulants; Multiple input single output; Non-cooperative context; STBCs;
D O I：
暂无
中图分类号：
TN911.7 [信号处理];
学科分类号：
0711 ; 080401 ; 080402 ;
摘要：
An efficient method for blind classification of space–time block codes(STBCs) based on fourth-order cumulants is proposed for a single receiver antenna.This paper presents a model of received STBCs signals in multiple input single output(MISO) communication systems and applies the characteristics of coding matrices to derive analytical expressions for the fourth-order cumulants to be used as the basis of an algorithm.The fourth-order cumulants at various delay vectors present non-null values that depend on the transmitted STBCs.Tests of nullity are accomplished by hypothesis testing.The proposed algorithm avoids the need for a priori information of modulation scheme,channel coefficients,and noise power.Consequently,it is well suited for non-cooperative scenarios.Simulations show that this method performs well even at low signal-to-noise ratios(SNRs).
引用
收藏
页码：754 / 762
页数：9
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