| 多用户检测中解相关检测和最小均方误差检测的研究 |
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| 引用本文： | 江宁馨,李峰. 多用户检测中解相关检测和最小均方误差检测的研究[J]. 计算技术与自动化, 2010, 29(4): 7-10 |
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| 作者姓名： | 江宁馨 李峰 |
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| 作者单位： | 长沙理工大学计算机与通信学院,湖南长沙410004 |
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| 基金项目： | 国家自然科学基金，湖南省科技计划项目基金，湖南省教育厅科研项目基金 |
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| 摘 要： | 多用户检测技术是第三代移动通信系统关键技术之一。其主要思想是充分利用所有用户的信息对接收信号做联合检测,抑制多址干扰,缓解＂远-近＂效应,从而有效地提高系统容量。本文对多用户检测技术进行初步的研究,尤其是两种主要的线性多用户检测技术：解相关检测和最小均方误差检测,做仔细地研究和比较,并用MATLAB在AWGN信道下和DS-CDMA系统中做仿真。
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| 关 键 词： | 多用户检测技术 多址干扰 解相关检测 最小均方误差检测 AWGN DS-CDMA |
The Study of Decorrelation Detection and MMSE Detection in Multi-user Detection |
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| JIANG Ning-xin,LI Feng. The Study of Decorrelation Detection and MMSE Detection in Multi-user Detection[J]. Computing Technology and Automation, 2010, 29(4): 7-10 |
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| Authors: | JIANG Ning-xin LI Feng |
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| Affiliation: | (Department of Computer and Communication,Changsha University of Science ＆ Technology,Changsha 410004,China) |
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| Abstract: | Multi-user detection is one of the most important key technologies in 3rd generation mobile communication.The main idea is to make full use of the information for all users to do the joint detection of received signal,control the multiple access interference and ease the ＂near-far＂ effect so as to improve the system capacity effectively.This paper studies the technology of multi-user detection,especially two main linear multi-user detections： decorrelation detection and MMSE detection,and it compares these two detectiony systems.Finally,it works out simulation results under DS-CDMA system in AWGN channel. |
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| Keywords: | multi-user detection multiple access interference decorrelation detection MMSE detection AWGN DS-CDMA |
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