MIMO-STOBC系统接收性能的研究  

Research of Performance for MIMO-STOBC Receiver System

作　　者：曾浩[1] 文娟[1] 朱奕奕[1] 

机构地区：[1]重庆邮电大学,重庆400065

出　　处：《通信技术》2007年第9期3-4,7,共3页Communications Technology

摘　　要：STOBC(Space-time Orthogonal Block Code)是MIMO系统实现空时分集采用的方法之一,Tarok采用正交设计扩展了这种编码结构。这种编码方式接收端完全采用线性处理技术,己被3G用作开环发射分集策略之一。文中以MIMO系统为平台,对STOBC传统的译码算法进行了分析,通过对接收数据的分析比较,充分利用其统计特性和内在关系,提出了基于正交扩频码的一种同码联合检测算法。仿真结果表明在减少运算量的情况下,该算法具有优良的性能。STOBC （space-time orthogonal block code） is one of the methods for coding system to realize space-time diversity. Tarok expands this coding system by orthogonal design method. The receiver of thiscoding system entirely uses linear disposal technique, and the system has been used as one strategy for the open-loop emission diversity. Using MIMO as the platform, through analysis on the traditional STOBC decoding algorithm, and by comparing the dada received and making best use of its statistic characteristic and inherent connection, a same code joint detection algorithm based on orthogonal spread spectrum is proposed. The results of simulation indicate that this algorithm has good performance and can reduce the amount of calculation.

关 键 词：多输入多输出 空时分集 正交扩频 联合检测算法 

分 类 号：TN929.5[电子电信—通信与信息系统]