RCPC编码MIMO系统的性能分析  

Performance Analysis for RCPC Coded MIMO Systems

作　　者：徐福永[1] 李光球[1] 

机构地区：[1]杭州电子科技大学通信工程学院,浙江杭州310018

出　　处：《杭州电子科技大学学报（自然科学版）》2005年第2期41-44,共4页Journal of Hangzhou Dianzi University：Natural Sciences

基　　金：国家自然科学基金项目(69972014);浙江省自然科学基金项目(600068)

摘　　要：研究相关Nakagami-m衰落信道上宽带MIMOWCDMA系统下行链路使用2D-RAKE接收机和码率兼容删除卷积码(RCPC)的误码性能。假定宽带MIMO信道可用抽头延迟线来模拟并具有指数型多径强度轮廓。使用Q(x)的另一种数学表达式和特征函数,推导RCPC编码系统的精确成对差错概率和误码性能联合限。数值计算结果表明组合编码和空间路径分集技术能显著改善MI MOWCDMA系统的误码性能。The error performance of rate-compatible punctured convolutional coding(RCPC),in combination with a two-dimensional(2D) RAKE receiver on the downlink of a MIMO WCDMA system in correlated Nakagami-m fading channels is investigated. The wideband MIMO channel can be modeled as a tapped delay line and an exponential multipath intensity profile(MIP)is assumed.Based on the alternative representations of Q(x) and characteristic function of SINR, the exact pairwise error probability of a RCPC coded system and union upper bound of error code performance are derived. Numerical results show that the combination of coding and spatial-path combining lead to dramatic error code performance improvement for MIMO WCDMA systems.

关 键 词：多输入多输出系统 衰落信道 码率兼容删除卷积码 空间路径分集 成对差错概率 二维 瑞克接收机 

分 类 号：TN911.22[电子电信—通信与信息系统]