| 基于MMSE的迭代多用户检测器的性能分析与仿真 |
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| 引用本文： | 胡东昌,王琳,魏琴芳.基于MMSE的迭代多用户检测器的性能分析与仿真[J].重庆邮电学院学报(自然科学版),2006,18(6):696-698. |
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| 作者姓名： | 胡东昌 王琳 魏琴芳 |
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| 作者单位： | [1]重庆邮电大学编码技术研究所,重庆400065 [2]厦门大学电子工程系,厦门361005 |
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| 基金项目： | 教育部新世纪优秀人才计划项目（NCET-04-0601）,重庆邮电大学青年教师基金项目（A2005-29） |
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| 摘 要： | 基于数据处理不等式，分析了采用软干扰消除技术的最小均方误差（MMSE）迭代多用户检测器的输出与发端输入的互信息。以及多用户检测器在已编码CDMA系统中的误比特率（BER）性能，从互信息和渐近效率的角度得出；基于MMSE的迭代多用户检测器为渐进最优。
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| 关 键 词： | 最小均方误差（MMSE） 多用户检测 Turbo 软干扰消除 |
| 文章编号： | 1004-5694（2006）06-0696-03 |
| 收稿时间： | 2006-04-26 |
| 修稿时间： | 2006-08 |
Performance analysis and simulation of MMSE based iterative multi-user detector |
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| HU Dong-chang , WANG Lin , WEI Qin-fang.Performance analysis and simulation of MMSE based iterative multi-user detector[J].Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition),2006,18(6):696-698. |
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| Authors: | HU Dong-chang WANG Lin WEI Qin-fang |
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| Institution: | 1. Institute of Information and Coding Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065 ,P. R. China; 2. Department of Electronic Engineering, Xiamen University, Xiamen 361005, P. R. China |
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| Abstract: | Based on data processing inequality,the authors analyzed the mutual information of the data bits of the transmitter and the output of the MMSE based soft interference cancellation iterative multi-user detector,and they also studied on the bit error rate(BER) of the iterative multi-user detector in the coded CDMA system.From the aspect of mutual information and asymptotic efficiency,they deduced that the MMSE based iterative multi-user detector is asymptotic optimal. |
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| Keywords: | minimum mean square error(MMSE) multi-user detector Turbo soft interference cancellation(SIC) |
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