瑞利衰落信道下多输入多输出系统格形码调制性能  

Analysis of the Performance of the MIMO Trellis-Coded Modulations in Rayleigh-Fading Channels

作　　者：何修富[1,2] 廖桂生[1] 郝坦锁[3] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室 [2]西安通信学院训练部,西安710065 [3]西安通信学院训练部

出　　处：《北京工业大学学报》2006年第1期15-20,共6页Journal of Beijing University of Technology

摘　　要：新一代高速无线数据传输大多采用MIMO信道传输．使用格形码TCM调制,在瑞利衰落信道下,可改善误码性能,用公式法导出瑞利衰落信道下,MIMO格形码调制系统的误码率性能界限,有利于实际方案的选择．本文采用平均最小自由欧氏距离,得到误比特率的公式表示,通过计算机模拟,在高信噪比情况下,该方法与实际情况非常接近．The MIMO channels were mostly used in the high data rate wireless communication. Trellis-coded modulation （TCM） was known to improve error performance in fading channels. An upper bound on the bit error probability was deduced by the formulation, which was in favour of the choice of actual design scheme The bit error rate was estimated by the minimum average Euclidean distance. Through simulation, the estimation is very accurate at high signal-to-noise ratio

关 键 词：MIMO系统 TCM调制 瑞利衰落信道 误码率 

分 类 号：TN919.4[电子电信—通信与信息系统]