基于TCM的分层结构空时分组码  

Layered Space Time Block Code Based on TCM Coding

作　　者：解春维[1] 郑春弟[2] 王衍文[1,3] 

机构地区：[1]西安科技大学通信与信息工程学院,陕西西安710054 [2]海军兵种指挥学院舰艇装备教研室,广东广州510430 [3]中兴通讯股份有限公司,陕西西安710065

出　　处：《现代电子技术》2009年第11期65-67,70,共4页Modern Electronics Technique

摘　　要：针对分层结构的空时分组码LSTBC,提出一种以网格编码调制TCM为外部编码的TCM-LSTBC方案。在接收端,利用数据特点构造出一种无需矩阵求逆的组干扰抑制方法。由于该TCM-LSTBC方案和组干扰抑制方法能有效分离各层发射信号,并且新形成的信道矩阵为Alamouti矩阵,故降低了译码复杂性。仿真结果验证了方案的有效性。For Layered Space time Block Coding（LSTBC）, a new layered space time block coding scheme combined with the outer Trellis- Coded Modulation（TCM） is proposed. In the receiver,a group interference suppression technology without matrix inverse is introduced, by exploiting the properties of measurements. For one thing, the signal can be efficiently separated one from another layer using the TCM - LSTBC scheme and the new group interference suppression. For another, the new channel matrix remains the character of Alamouti matrix. Then the complexity of receiver is decreased in decoding stage. The simulation results demonstrate the favorable performance of the proposed TCM - LSTBC scheme.

关 键 词：TCM 分层结构空时分组码 分组干扰抑制 空时分组码 

分 类 号：TN92[电子电信—通信与信息系统]