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Time Delay Compensation in Power Controlled Cellular Radio Systems
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2001 (English)Report (Other academic)
Abstract [en]

Transmission power control is an important means to manage the radio resources in wireless communications. The performance, however, may be reduced due to time delays as in any controlled system. Most controllers to date are designed without considering time delays, which may result in oscillatory or unstable systems. To overcome these problems, time delay compensation (TDC) is introduced. The main idea is to adjust the measurements [e.g., signal-to-interference ratio (SIR)] to include the effects of issued but not yet applied power control commands. TDC thereby improves the stability and performance of an arbitrary power control algorithm. The benefits are illustrated by simulations using some popular power control algorithms.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2001. , 6 p.
Series
LiTH-ISY-R, ISSN 1400-3902 ; 2334
Keyword [en]
CDMA, Cellular, Distributed control, Feedback errors, Integrating control, Measurement filtering, Power control, Relay feedback, Signal-to-interference ratio, Stability, Time delay, Wireless
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-55777ISRN: LiTH-ISY-R-2334OAI: oai:DiVA.org:liu-55777DiVA: diva2:316554
Available from: 2010-04-30 Created: 2010-04-30 Last updated: 2014-08-15Bibliographically approved

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Gunnarsson, FredrikGustafsson, Fredrik

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf