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| DS/CDMA多用户通信系统在AWGN信道下的仿真 | |
| 引用本文： | 覃团发,徐娟,陈光旨.DS/CDMA多用户通信系统在AWGN信道下的仿真[J].广西科学,2000,7(3):192-195. |
| 作者姓名： | 覃团发 徐娟 陈光旨 |
| 作者单位： | 1. 广西大学计算机与信息工程学院,南宁市西乡塘路10号,530004 2. 上海铁道大学电信系,上海市真南路450号,200331 3. 广西大学物理系,南宁市西乡塘路10号,53004 |
| 基金项目： | 广西自然科学基金，桂科自9912005， |
| 摘 要： | 采用ｍ序列作为扩频序列，利用特卡罗方法和重要抽样技术对ＤＳ／ＣＤＭＡ多用户通信系统在加性高斯白噪声信道下的误码率进行仿真研究。仿真结果表明，重要抽样技术仿真结果与特卡罗方法仿真结果吻合得很好，并且在低误码率的情况下，与蒙特卡罗方法相比，重要抽样技术能显著降低运算量。 |
| 关 键 词： | 仿真 码分多址 DS／CDMA多用户通信系统 AWGN信道 |
| 收稿时间： | 2000/6/23 0:00:00 |
Simulation of DS/CDMA Multiuser Communication Systems in AWGN Channel |
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| Qin Tuanf,Xu Juan and Chen Guangzhi.Simulation of DS/CDMA Multiuser Communication Systems in AWGN Channel[J].Guangxi Sciences,2000,7(3):192-195. | |
| Authors: | Qin Tuanf Xu Juan and Chen Guangzhi |
| Institution: | College of Comp. and Info. Engi., Guangxi Univ., 10 Xixiantanglu, Nanning, Guangxi, 530004, China,College of Comp. and Info. Engi., Guangxi Univ., 10 Xixiantanglu, Nanning, Guangxi, 530004, China and College of Comp. and Info. Engi., Guangxi Univ., 10 Xixiantanglu, Nanning, Guangxi, 530004, China |
| Abstract: | m sequences are used as spread spectrum sequences; Simulation of the biterrorrate(BER) performance of DS/CDMA multiuser systems in an additive Gaussian white noise channel is investigated by using MonteCarlo method and importance sampling technique. The results of simulation in computer show that importance sampling technique results are close agree MonteCarlo method results. On the other hand, importance sampling simulation can significantly reduce the computational cost required by using Monte Carlo simulation when the BER is very low. |
| Keywords: | Simulation code division multiple access Monte Carlo method importance sampling technique additive Gaussian white noise |
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