Joint subcarrier and power allocation in uplink OFDMA systems

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In this letter, we focus on joint subcarrier and power allocation in the uplink of an OFDMA system. Our goal is to maximize the rate-sum capacity in the uplink. For the purpose, we formulate an optimization problem subject to subcarrier- and power constraints and draw necessary conditions for optimality, from which we derive joint subcarrier and power allocation algorithms. Simulation results show that our proposed scheme enhances the system capacity, providing almost near optimal solutions with low computational burden.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2005-06
Language
English
Article Type
Article
Keywords

MULTIUSER OFDM

Citation

IEEE COMMUNICATIONS LETTERS, v.9, no.6, pp.526 - 528

ISSN
1089-7798
DOI
10.1109/LCOMM.2005.06018
URI
http://hdl.handle.net/10203/91970
Appears in Collection
EE-Journal Papers(저널논문)
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