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Power Control Algorithm and Simulation Research for Time Varying Link Gains in Mobile Communication Systems

Author: LiuZuoSheng
Tutor: CaiMin
School: Dalian Jiaotong University
Course: Applied Mathematics
Keywords: Third generation mobile communications Power Control Time-varying Binary feedback power control algorithm
CLC: TN929.533
Type: Master's thesis
Year: 2010
Downloads: 69
Quote: 0
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Abstract


In CDMA mobile communication system , a very important issue is the radio resource efficient use of power control technology is one of the key technologies of the third generation mobile communication system , which determines the entire system coverage and capacity of the system . The objectives of the power control is able to quickly adjust the transmit power of the mobile environment changes size , and makes both able to guarantee a certain quality of communication to other users is not generating too much interference . Power control algorithm is good or bad has a direct impact on system performance . This article briefly describes the traditional communication power control technology: reverse power control with power control , centralized power control with distributed power control , open loop power control , closed loop power control and outer loop power control ; also introduced based on game On the CDMA system power control . On the basis of the results of previous studies , the reference in recent years the FMA algorithm proposed by Foschini and Miljanic , the Zekeriya Uykan and Heikki proportion of power control algorithm , this paper presents a binary feedback power control algorithm . And the most of the power control algorithms use different methods of numerical algebra , binary feedback power control algorithm uses stochastic approximation theory intrinsic link gain has changed randomly estimated error of the mobile communication system mathematical model , the model shows that the signal to interference ratio convergence to a relatively small range , and smooth fluctuations in this interval , we then derived from the theoretical analysis and numerical simulation proved both in binary feedback power control algorithm with respect to the FMA algorithm and the proportion of power control algorithms have a stronger robustness.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications > Cellular mobile communications systems (mobile phones, mobile phone handsets ) > Code Division Multiple Access (CDMA) mobile communication
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