衰落信道下基于空时分集编码的解相关检测技术研究  

Decorrelating Detection Technology Based on Space-time Diversity Coding with Fading Channel

作　　者：秦长江[1] 刘明涛[1] 马云峰[1] 

机构地区：[1]兰州交通大学电子与信息工程学院,甘肃兰州730070

出　　处：《兰州交通大学学报》2014年第3期129-132,138,共5页Journal of Lanzhou Jiaotong University

摘　　要：多用户检测技术能够抑制小区干扰,增加系统容量,而多输入多输出(MIMO)系统可以增加系统空间分集度来抑制信道衰落,提高系统可靠性.作者在码分多址(CDMA)系统瑞利衰落信道环境下,采用MIMO多天线空间分集技术,探究解相关检测器的相关性能,并通过对不同情况下信噪比与误码率的仿真、分析和比较,实现了预期效果.Multi-user detection techniques can inhibit cell interference and increase the capacity of the system,and multiple-input multiple-output （MIMO）systems can suppress fading and improve reliability by increasing the degree of spatial diversity of the system.The performance of the decorrelating detector is explored in code division multiple access （CDMA）system with Rayleigh fading channels by using MIMO multiple antennas spatial diversity technology,and the expected result is obtained by simulating,analyzing and comparing SNR and BER in different circum-stances.

关 键 词：解相关检测器 瑞利衰落信道 MIMO 系统 误码率 相关矩阵 

分 类 号：TN929.5[电子电信—通信与信息系统]