| CDMA信道的盲均衡和多用户检测 |
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| 引用本文： | 赵品勇,陶乃勇.CDMA信道的盲均衡和多用户检测[J].南京邮电大学学报(自然科学版),2001,21(1):48-52. |
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| 作者姓名： | 赵品勇 陶乃勇 |
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| 作者单位： | 1. 浙江省邮电规划设计院,
2. 南京邮电学院通信工程系, |
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| 摘 要： | 把码分多址 (CDMA)信道等效为一多输入多输出 (MIMO)信道模型 ,用子空间分解的盲估计方法进行信道估计 ,而且估计出信号子空间特征向量 ,利用信道参数和信号子空间的特征向量构建解相关和最小均方误差 (MMSE)两类线性检测器 ,能同时消除码间干扰 (ISI)和多址干扰 (MAI)。
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| 关 键 词： | 码分多址 盲均衡 多用户检测 |
| 文章编号： | 1000-1972(2001)01-0048-05 |
| 修稿时间： | 2000年4月28日 |
Blind Equalization and Multiuser Detection in CDMA Channels |
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| ZHAO Pin-yong ,TAO Nai-yong .Zhejiang Provincial Planning and Design Institute of Posts and Telecommunications,Hangzhou ,China.Blind Equalization and Multiuser Detection in CDMA Channels[J].Journal of Nanjing University of Posts and Telecommunications,2001,21(1):48-52. |
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| Authors: | ZHAO Pin-yong TAO Nai-yong Zhejiang Provincial Planning and Design Institute of Posts and Telecommunications Hangzhou China |
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| Institution: | ZHAO Pin-yong 1,TAO Nai-yong 2 1.Zhejiang Provincial Planning and Design Institute of Posts and Telecommunications,Hangzhou 310014,China 2.Department of Communication Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China |
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| Abstract: | Firsty,CDMA channel is modeled as a multipleinput multiple-output(MIMO) channel.Then the channel is estimated using the blind subspace method and the eigen vector of signal subspace is evaluated.Two types of linear detector,zero-forcing detector and Minimum Mean Square Error(MMSE) detector,can be constructed using channel parameters and engen vectors of signal subspace.They can suppress both Inter Symbol Interference(ISI) and Multi-Access Interference(MAI). |
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| Keywords: | Code division multiple access Blind equalization Multiuser detection |
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