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

作　　者：Ling Qing Zhang Limin Yan Wenjun Kong Dongming 

机构地区：[1]Istitute of Information Fusion,Naval Aeronautical and Astronautical University Yantai 264001,China [2]Equipment of Navy,Talyuan 030027,China

出　　处：《Chinese Journal of Aeronautics》2016年第3期754-762,共9页中国航空学报（英文版）

基　　金：co-supported by the Taishan Scholar Special Foundation of China(No.ts201511020)

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 cumu- lants 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）.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 cumu- lants 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）.

关 键 词：Blind classification Fourth-order cumulants Multiple input single output Non-cooperative context STBCs 

分 类 号：TN911.7[电子电信—通信与信息系统]