摘要
针对码分多址接入(CDMA)系统中最优多用户检测的指数计算复杂度问题,从组合优化的角度,提出了一种基于改进遗传算法的多用户检测。这种方法通过增加种群的多样性,可避免单纯使用遗传算法时收敛速度慢,易于出现早熟收敛等缺点。实验结果表明,该方法可获得接近最佳检测的性能。
In view of the exponential computation complexity of the optimal multiuser detection in code-division multiple-access(CDMA) systems,a multiuser detection method which employs an improved genetic algorithm is proposed from a combinatorial optimization viewpoint. By means of increasing the race individuals,the slow convergence rate and premature convergence of the pure genetic algorithm are avoided. The computer simulation results show that the obtained performance approaches the optimal multiuser detector.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第5期463-465,共3页
Journal of Hefei University of Technology：Natural Science
关键词
码分多址
多用户检测
遗传算法
code-division multiple-access(CDMA)
multi-user detection
genetic algorithm
