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Power Control in Cellular Radio Systems: Analysis, Design and Estimation
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2000 (English)Doctoral thesis, monograph (Other academic)
Abstract [en]

The primary goal of cellular radio systems is to provide communications services to a large number of mobile users. Due to the dramatic increase in number ofusers and their demand for more advanced services, the available resources haveto be utilized efficiently. Closed-loop power control is considered as an important component in this resource management.

For practical reasons, the powers have to be computed locally for each connection, though performance and stability depend on how the different connections interact. We consider the power control problem as a decentralized control system, consisting of interconnected local control loops. Methods from control theory are used to analyze existing algorithms locally and to design controllers with improved performance. Thereby, performance degradation due to time delays and nonlinearities, can be handled by careful controller design. On a global level, we provide results on stability and convergence of the designed controllers. The results are illustrated by simulations using both small and large-scale simulation environments.

Place, publisher, year, edition, pages
Linköping: Linköping University , 2000. , 245 p.
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 623
National Category
Control Engineering
URN: urn:nbn:se:liu:diva-98136ISBN: 91-7219-689-0OAI: diva2:652263
Available from: 2013-10-09 Created: 2013-09-30 Last updated: 2013-10-09Bibliographically approved

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Gunnarsson, Fredrik
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Automatic ControlThe Institute of Technology
Control Engineering

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