Title
Optimal power control in OFDMA cellular networks
Abstract
This article addresses the problem of allocating users to radio resources in the downlink of an OFDMA cellular system. We consider a classical multicellular environment with a realistic interference model and a margin adaptive approach, i.e., we aim at minimizing total transmission power while maintaining a certain given rate for each user. We discuss computational complexity issues of the resulting model and present a heuristic approach that finds optima under suitable conditions or reasonably good solutions in the general case. Computational experiments show the effectiveness of the proposed heuristic in a comparison with both a commercial state-of-the-art optimization solver and other approaches from the literature. © 2011 Wiley Periodicals, Inc. NETWORKS, 2011 © 2011 Wiley Periodicals, Inc.
Year
DOI
Venue
2011
10.1002/net.20429
Networks
Keywords
Field
DocType
computational complexity issue,wiley periodicals,realistic interference model,ofdma cellular system,inc. networks,margin adaptive approach,ofdma cellular network,optimal power control,proposed heuristic,heuristic approach,computational experiment,resulting model,power control,network flow,heuristic algorithm,cellular network
Mathematical optimization,Heuristic,Heuristic (computer science),Power control,Resource allocation,Cellular network,Frequency-division multiple access,Solver,Mathematics,Computational complexity theory
Journal
Volume
Issue
ISSN
57
3
0028-3045
Citations 
PageRank 
References 
0
0.34
16
Authors
4
Name
Order
Citations
PageRank
Paolo Detti114419.55
Gaia Nicosia214325.16
Andrea Pacifici339731.36
Mara Servilio4184.68