STBC-OFDM系统的空时多用户检测  

Space-time Multi-user Detection in STBC-OFDM System

作　　者：王艳丽[1,2] 李国民[1] 

机构地区：[1]西安科技大学通信与信息工程学院,西安710054 [2]渭南师范学院计算机科学系,陕西渭南714000

出　　处：《煤炭技术》2010年第1期55-57,共3页Coal Technology

基　　金：省级科研计划资助项目(09JK433)

摘　　要：为了抑制空时分组码OFDM系统的共道用户多址干扰,针对自适应MMSE多用户检测算法,采用拉格朗日乘法与扩大限制空间方案相结合。仿真表明,该检测算法性能优于传统检测算法,可获得较为满意的干扰消除效果。In order to restrain the interference of co - channel users in STBC - OFDM system, in this paper, we studied the low - complexity MMSE multi - user detection algorithms and based on the adaptive MMSE Space - time Multi - user detection algorithms, we adopt the lagrange multipliers method and extend the constraint space scheme for decreasing the complexity of system. The simulations show that the proposed detection gives the better performance than the traditional algorithms, and can greatly reduce the interuser interference to meet the expectation of the practical system.

关 键 词：空时分组码 正交频分复用 检测 

分 类 号：TN929.5[电子电信—通信与信息系统]