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Admission Control in Cellular Radio Systems Based on Relative Load Estimates
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)In: Proceedings of the 2001 Nordic Radio Symposium, 2001Conference paper, Published paper (Other academic)
Abstract [en]

When operating a cellular radio system nearly at full capacity, admitting yet another user may jeopardize the stability of the system as well as the performance of the individual users. Therefore, proper admission control is crucial. The core idea in this work is to predict the relative load of the system, given that a user is admitted. Then, the user will be admitted if the predicted load in the specific cell, and in its neighbors, is below some threshold. This provide an interesting alternative to algorithms based on hard capacity, which might be utilizing the resources inefficiently in order to be robust. The proposed uplink admission control algorithm utilizes measurements readily available in the system. Simulations indicate performance improvements. Furthermore, multi-services are naturally handled, and availability of high data-rate services are automatically limited with respect to coverage, compared to services of lower data-rate.

Place, publisher, year, edition, pages
2001.
Keyword [en]
Cellular radio systems, Admission control, WCDMA, Uplink, Relative load, Soft capacity, Handover events
National Category
Engineering and Technology Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-90783OAI: oai:DiVA.org:liu-90783DiVA: diva2:616495
Conference
2001 Nordic Radio Symposium, Nynäshamn, Sweden, April, 2001
Available from: 2013-04-17 Created: 2013-04-07 Last updated: 2013-04-17

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Gunnarsson, FredrikGeijer Lundin, Erik

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  • nn-NB
  • sv-SE
  • Other locale
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Output format
  • html
  • text
  • asciidoc
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