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Fundamental Limitations of Power Control in WCDMA
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2001 (English)Report (Other academic)
Abstract [en]

Power control is considered as an important means to combat near-far fading effects and maintain acceptable connections in wireless communications systems. When applying power control in practice, the performance is restricted by a number of fundamental limitations. Here, these are addressed from a control theory perspective. Limited update rate, limited feedback bandwidth, time delays, measurement errors, feedback errors, and filtering effects among other aspects all affect the resulting performance, and are related to radio channnel characteristics. Simulations further illustrate the hampering effects.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2001. , 7 p.
LiTH-ISY-R, ISSN 1400-3902 ; 2404
Keyword [en]
Power control, WCDMA, Time delays, Stability, Distributed control, Relay control, Measurement errors, Filtering
National Category
Control Engineering
URN: urn:nbn:se:liu:diva-55854ISRN: LiTH-ISY-R-2404OAI: diva2:316683
Available from: 2010-04-30 Created: 2010-04-30 Last updated: 2014-08-14Bibliographically approved

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Gunnarsson, Fredrik
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Automatic ControlThe Institute of Technology
Control Engineering

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ReferencesLink to record
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