基于GA的SDMA-MIMO系统联合检测算法  

Joint Detection Algorithm for SDMA-MIMO Systems Based on GA

作　　者：杜娟[1] 王琪[1] 方伟伟[1] 

机构地区：[1]南阳理工学院计算机与信息工程学院,河南南阳473004

出　　处：《计算机与现代化》2015年第5期90-93,共4页Computer and Modernization

摘　　要：为了提高SDMA-MIMO系统接收机的整体性能,提出基于遗传算法的最小均方误差多用户检测和信号解调的联合优化算法。该算法把解调后的用户信息作为遗传算法的初始种群,从而提高多用户检测的初始精度,并通过多次迭代使系统性能得到提高。仿真结果表明:在同样复杂度的情况下,相比基于遗传算法的MMSE检测技术,MMSE-GA MJD可以获得更优的系统性能。To improve the overall system performance for SDMA-MIMO, the joint MMSE multi-user detection and signal demodu-lation based on genetic algorithm is proposed .The algorithm values the demodulated user information as the initial population of the genetic algorithm , so the accuracy of multi-user detection algorithm is improved , and the system performance is improved after several iterations .Simulation results show that at the modest complexity , compared to MMSE detection based genetic algorithm , MMSE-GA MJD can achieve better performance .

关 键 词：多用户检测 信号解调 联合优化 

分 类 号：TN91[电子电信—通信与信息系统]