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Stability of Rate and Power Control Algorithms in Wireless Cellular Networks
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Optimization and Systems Theory. KTH, School of Engineering Sciences (SCI), Centres, Center for Industrial and Applied Mathematics, CIAM.
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Optimization and Systems Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
2011 (English)In: 2011 50th IEEE Conference On Decision And Control And European Control Conference (CDC-ECC), IEEE , 2011, 4535-4541 p.Conference paper, Published paper (Refereed)
Abstract [en]

In radio resource management for cellular networks a trade-off has to be made between the congestion level, related to cell coverage and intercell interference, and the Quality of Service (QoS) or data rates of the users. This is implemented by using a fast inner power control loop and an outer rate control algorithm, working on a slower time scale. Due to the distributed nature of the network, both information and control is distributed. Measurements of congestion and QoS are used in the control loops and this introduces a nonlinear feedback. Another complicating factor is that filtering, computations and information exchange in the network introduce time delays. In this paper we propose a general high order model as a cascade system with an outer and inner control loop. The control algorithms use distributed information available in the network. The full system model includes the nonlinear feedback from congestion and QoS measurements, time delays and time scale modelling. We provide sufficient conditions for stability and convergence of the system. Our primary analysis tool is input output theory.

Place, publisher, year, edition, pages
IEEE , 2011. 4535-4541 p.
Series
IEEE Conference on Decision and Control. Proceedings, ISSN 0191-2216
Keyword [en]
Radio Systems, Framework
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-137164DOI: 10.1109/CDC.2011.6160695ISI: 000303506205025Scopus ID: 2-s2.0-84860689528ISBN: 978-161284800-6 (print)OAI: oai:DiVA.org:kth-137164DiVA: diva2:679094
Conference
2011 50th IEEE Conference on Decision and Control and European Control Conference, CDC-ECC 2011; Orlando, FL; United States; 12 December 2011 through 15 December 2011
Note

QC 20131213

Available from: 2013-12-13 Created: 2013-12-11 Last updated: 2013-12-13Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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More styles
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Output format
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