| 直扩卫星通信系统中多用户检测算法比较 |
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| 引用本文： | 张秋生,贺欢,陈守强.直扩卫星通信系统中多用户检测算法比较[J].信息安全与通信保密,2007(7):65-68. |
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| 作者姓名： | 张秋生 贺欢 陈守强 |
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| 作者单位： | 西安通信学院,陕西,西安,710106 |
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| 摘 要： | 实际在CDMA系统中,多址干扰(MAI)是主要的干扰来源,多用户检测技术完全可以抑制这种多址干扰。论文分析了几种典型的多用户检测技术,并在高斯信道环境下对解相关检测器、最小均方误差检测器和传统检测器进行了仿真和性能比较。
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| 关 键 词： | 卫星移动通信系统 多用户检测 多址干扰抑制 码分多址 |
| 文章编号： | 1009-8054(2007)07-0065-04 |
| 修稿时间： | 2007年5月6日 |
Comparison of Multiuser Detection in Direct spread-Code Division Multiple Access of Satellite Mobile Communication System |
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| ZHANG Qiu-sheng,HE Huan,CHEN Shou-qiang.Comparison of Multiuser Detection in Direct spread-Code Division Multiple Access of Satellite Mobile Communication System[J].China Information Security,2007(7):65-68. |
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| Authors: | ZHANG Qiu-sheng HE Huan CHEN Shou-qiang |
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| Abstract: | The multi-user detection(MUD) is the most important anti-interference technology for CDMA system,and has been a hot spot in telecom research field. In the practical CDMA system most of the interference comes from multiaccess interference(MAI). Several representative sub-optimal multiuser detectors are analyzed in this paper. And the simulation and the performance comparison of the decorrelating detector,MMSE detecter,conventional detector are conducted under the Gaussian channel environment. |
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| Keywords: | satellite mobile telecommunication system multiuser detection multiple access interference cancellation code-division multiple access |
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