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Uplink Load in CDMA 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.
2006 (English)In: IEEE Transactions on Vehicular Technology, ISSN 0018-9545, E-ISSN 1939-9359, Vol. 55, no 4, 1331-1346 p.Article in journal (Refereed) Published
Abstract [en]

Well-operating resource-management algorithms are crucial in wireless networks for ensuring the quality of service and, perhaps more importantly, for securing stability when operating at high load. These algorithms benefit from accurate feedback of the current network load. In the uplink of a code-division-multiple-access cellular network, the load is strongly related to the uplink noise rise, i.e., the ratio between total received power and background-noise power. This paper is primarily concerned with characterizing and approximating the uplink load. Two different load definitions are made. These relate to the received and transmitted carrier powers, respectively. Bounds that can be established in practice, e.g., before a resource decision is made, are used to develop a procedure for approximating the uplink load in practice. Furthermore, a stochastic approach to link budgets is used to establish the uplink load's role in the tradeoff between coverage and individual user satisfaction. Simulations indicate that the average error of the proposed load approximations is small for all load levels expected to appear in practice.

Place, publisher, year, edition, pages
IEEE Vehicular Technology Society , 2006. Vol. 55, no 4, 1331-1346 p.
Keyword [en]
Link budgets, Load approximations, Maximum noise rise, System load, System stability, Uplink noise-rise variance
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-50190DOI: 10.1109/TVT.2006.874577OAI: oai:DiVA.org:liu-50190DiVA: diva2:271086
Note

© 2006 IEEE.

Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-12

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Gunnarsson, Fredrik

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CiteExportLink to record
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Citation style
  • apa
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  • Other style
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  • de-DE
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  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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