| 引用本文： |
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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. [点击复制]
- Qin Tuanfa,Xu Juan,Chen Guangzhi.Simulation of DS/CDMA Multiuser Communication Systems in AWGN Channel[J].Guangxi Sciences,2000,7(3):192-195. [点击复制]
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| 摘要: |
| 采用m序列作为扩频序列,利用蒙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蒙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 蒙特卡罗方法 重要抽样技术 加性高斯白噪声 |
| DOI： |
| 投稿时间：2000-06-23 |
| 基金项目:广西自然科学基金资助项目(桂科自9912005)。 |
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| Simulation of DS/CDMA Multiuser Communication Systems in AWGN Channel |
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Qin Tuanfa, Xu Juan, Chen Guangzhi
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| (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 bit-error-rate(BER) performance of DS/CDMA multiuser systems in an additive Gaussian white noise channel is investigated by using Monte-Carlo method and importance sampling technique. The results of simulation in computer show that importance sampling technique results are close agree Monte-Carlo 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. |
| Key words: Simulation code division multiple access Monte-Carlo method importance sampling technique additive Gaussian white noise |
