| 混合遗传算法在CDMA移动通信多用户检测中的应用研究 |
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| 引用本文： | 倪梁方,郑宝玉,吴新余.混合遗传算法在CDMA移动通信多用户检测中的应用研究[J].南京邮电大学学报(自然科学版),2001,21(3):1-6. |
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| 作者姓名： | 倪梁方 郑宝玉 吴新余 |
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| 作者单位： | 1. 南京邮电学院信息工程系,
2. 南京邮电学院电子工程系, |
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| 摘 要： | 研究了将混合遗传算法应用于直接序列码分多址扩频通信的多用户检测 ,先给出了在异步高斯信道下解调扩频信号的结构框图 ,然后分析了用混合遗传算法进行多用户检测的理论依据和实际性能。仿真结果表明无论是抗多址干扰还是抑制远近效应 ,基于混合遗传算法的检测器都明显优于传统检测器 ,且其性能非常接近最佳检测器。
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| 关 键 词： | 直接序列扩频 多用户检测 混合遗传算法 |
| 文章编号： | 1000-1972(2001)03-0001-06 |
| 修稿时间： | 2001年5月8日 |
The Application Investigation of Hybrid Genetic Algorithm(HGA) for Multi-User Detection in CDMA Mobile Communications |
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| NI Liang-fang ,ZHENG Bao-yu ,WU Xin-yu.The Application Investigation of Hybrid Genetic Algorithm(HGA) for Multi-User Detection in CDMA Mobile Communications[J].Journal of Nanjing University of Posts and Telecommunications,2001,21(3):1-6. |
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| Authors: | NI Liang-fang ZHENG Bao-yu WU Xin-yu |
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| Institution: | NI Liang-fang 1,ZHENG Bao-yu 1,WU Xin-yu 2 1.Department of Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China 2.Department of Electronic Engineering,Nanjing University of Posts and Telecommunications,Nanji |
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| Abstract: | Study is conducted on the application of Hybrid Genetic Algorithm (HGA) to the multiuser detection with DS-CDMA spread spectrum communication.The schematic diagram is presented for the demodulation of spread spectrum signals in asynchronous Guassian Channels.An analysis is then given to the theoretical basis and practical performance of multiuser detection using HGA.The emulation results have shown that HGA-based detector is obviously superior to the conventional one in terms of both the resistance on the multiple access interference and the mitigation of near-rar effects.Its performance is chose to the optimal detector. |
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| Keywords: | Direct sequence spread spectrum Multi-user detection Hybrid genetic algorithm |
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