Abstract | ||
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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 |
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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 Detti | 1 | 144 | 19.55 |
Gaia Nicosia | 2 | 143 | 25.16 |
Andrea Pacifici | 3 | 397 | 31.36 |
Mara Servilio | 4 | 18 | 4.68 |