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A Joint Power and Rate Control Algorithm and Fairness Enhancement for Multiuser OFDM System
Ericsson Research, Isafjordsgatan 14E, 164 93 Kista, Sweden.
Ericsson Research, Isafjordsgatan 14E, 164 93 Kista, Sweden.
2008 (English)In: 68TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, FALL 2008, 2008, 1872-1876 p.Conference paper (Refereed)
Abstract [en]

A joint adaptive power and adaptive rate (APAR) control algorithm for OFDM systems that aims at sum-rate maximization, subject to certain power and rate constraints, is presented in this paper. In the basic optimization framework, the overall system throughput is the main objective, but as such it lacks user fairness consideration. Two scheduling schemes that allow adjusting the trade-off between fairness and throughput are proposed and combined with the APAR scheme for fairness enhancement. Simulation results show that enhanced system performance and balanced efficiency-fairness trade-off can be achieved by the proposed schemes in downlink.

Place, publisher, year, edition, pages
2008. 1872-1876 p.
, IEEE VTS Vehicular Technology Conference Proceedings, ISSN 1090-3038
Keyword [en]
Fairness, OFDM, Optimization, Joint Power and Rate Control, RRM, Scheduling
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-67329DOI: 10.1109/VETECF.2008.391ISI: 000288717900375ISBN: 978-1-4244-1722-3OAI: diva2:484853
68th IEEE Vehicular Technology Conference. SEP 21-24, 2008. Calgary, CANADA
QC 20120131Available from: 2012-01-27 Created: 2012-01-27 Last updated: 2012-01-31Bibliographically approved

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Larsson, Peter
Communication Systems

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