基于线性变换的TCM-LSTBC解码方案  

A Decoding Scheme of TCM-LSTBC Based on Linear Transform

作　　者：解春维[1] 郑春弟[2] 王衍文[1] 

机构地区：[1]西安科技大学通信工程学院,陕西西安710054 [2]海军兵种指挥学院信息作战教研室,广东广州510430

出　　处：《通信技术》2009年第11期31-33,共3页Communications Technology

摘　　要：文中针对TCM分层结构空时分组编码系统,提出了一种新的接收解码方案。该方案首先对接收数据进行线性变换,虚拟的将接收天线个数加倍,然后采用奇异值(SVD)组干抑制方法对信号进行分离。由于提出的新解码方案突破了SVD组干扰抑制技术对接收天线个数的限制,因此可降低接收端的复杂性。仿真结果表明本文提出的解码方案的系统误码性能优于传统组干扰抑制法的系统误码性能。Based on combination of layered space time block coding （LSTBC） with outer trellis-coded modulation （TCM）, a new decoding scheme is proposed. The received data are processed by linear transform, and then the number of available receiving antenna are virtually doubled in the proposed scheme. Furthermore, a group interference suppression measurement of singular value decomposition （SVD） is employed to separate the signal of different subgroups. The proposed decoding scheme could reduce the complexity of receiver, because it is beyond minimum permissible limit of the conventional SVD algorithm. The simulation results indictae that the proposed method is superior to traditional methods in BER.

关 键 词：空时分组编码 分层空时结构 分组干扰抑制 

分 类 号：TN911.22[电子电信—通信与信息系统]