| CDMA蜂窝移动通信系统中的联合功率控制 |
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| 引用本文： | 王宇,李少谦,李乐民.CDMA蜂窝移动通信系统中的联合功率控制[J].电子学报,2000,28(Z1):114-118,113. |
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| 作者姓名： | 王宇 李少谦 李乐民 |
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| 作者单位： | 电子科技大学通信抗干扰技术国防重点实验室, 成都 610054 |
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| 基金项目： | 国家“863”计划资助课题(863-317-03-01-10-99) |
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| 摘 要： | 功率控制技术是CDMA系统克服“远-近效应”,降低多址干扰、增大系统容量的一项关键技术.第三代移动通信系统对功率控制提出了新的研究课题.本文简要介绍了联合功率控制技术的基本概念,重点阐述了目前在多媒体CDMA系统中,联合功率控制与速率控制技术,与多用户检测技术,以及与自适应天线阵列处理技术的研究进展,并分析了目前研究中仍然存在的问题,最后指出了未来的研究方向.
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| 关 键 词： | CDMA 功率控制 速率控制 多用户检测 自适应天线阵列 |
| 收稿时间： | 1999-07-11 |
Joint Power Control in CDMA Cellular Mobile Communication Systems |
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| WANG Yu,LI Shao-qian,LI Le-min.Joint Power Control in CDMA Cellular Mobile Communication Systems[J].Acta Electronica Sinica,2000,28(Z1):114-118,113. |
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| Authors: | WANG Yu LI Shao-qian LI Le-min |
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| Affiliation: | The National Communication Lab of University of Electronic Science and Technology, ChengDu 610054, China |
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| Abstract: | Power control is a key technique in CDMA cellular mobile communication systems.It can combat near-far effect,reduce multiple access interference and improve the system capacity.The 3rd generation mobile communication systems present some new problems for power control technique.This paper introduces the basic concepts about joint power control technique in CDMA cellular systems.The focus is on the recent development of the following three subjects in multimedia CDMA system:joint power and rate control technique,joint power control and multiuser detection technique,joint power control and adaptive antenna array processing technique.We analyze the unsettled problem so far,and suggest the future direction for power control study. |
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| Keywords: | CDMA power control rate control multiuser detection adaptive antenna array |
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