inria-00502006, version 1
Iterative Power and Subcarrier Allocation for Maximizing WSMR in Cellular OFDMA Systems
Tao Wang
1Luc Vandendorpe a, 2
WiOpt'10: Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (2010) 318-323
Résumé : We consider the resource allocation (RA) problem of maximizing the weighted sum of the minimal user rates (WSMR) of coordinated cells subject to a total power constraint at each base station (BS) in the downlink of a cellular orthogonal frequency division multi-access (OFDMA) system. In particular, the solution of this problem corresponds to a RA that guarantees similar rates to users in each cell. We propose a coordinate ascent (CA) based algorithm which alternatively updates the power allocation by solving a successive set of convex optimization problems with a duality-based numerical algorithm, and the subcarrier allocation by solving a mixed integer linear program for each cell. The effectiveness of the algorithm is illustrated by numerical experiments.
- a – Université Catholique de Louvain
- 1 : Laboratoire de Télécommunications et Télédétection [Louvain] (TELE)
- Université Catholique de Louvain (UCL) - Belgique
- 2 : Laboratoire de Télédétection et Télécommunications (TELE)
- Université Catholique de Louvain (UCL) - Belgique
- Collaboration : Workshop 04 : RAWNET : Workshop on Resource Allocation in Wireless Networks
- Domaine : Informatique/Informatique mobile
Informatique/Réseaux et télécommunications - Mots-clés : Orthogonal frequency division multiplexing – resource allocation – cochannel interference mitigation – spectrum management
- inria-00502006, version 1
- http://hal.inria.fr/inria-00502006
- oai:hal.inria.fr:inria-00502006
- Contributeur : Service Ist Inria Sophia Antipolis-Méditerranée / I3s
- Soumis le : Mardi 13 Juillet 2010, 09:23:41
- Dernière modification le : Mardi 13 Juillet 2010, 15:05:16
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