A fast power allocation strategy for OFDM systems

Authors:
Wei-Cheng Pao;Yung-Fang Chen
Affiliations:
Department of Communication Engineering, Jung-Ii City, Taoyuan, Taiwan, R.O.C.;Department of Communication Engineering, Jung-Ii City, Taoyuan, Taiwan, R.O.C.
Venue:
IEEE Transactions on Communications
Year:
2010

Citing 11
Cited 0

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Abstract

In this letter, we propose a power allocation strategy for orthogonal frequency division multiplexing (OFDM) systems. To achieve the maximum capacity, the proposed power allocation strategy iteratively tunes the amount of power allocated to subcarriers according to the related parameters in the duality gap. The proposed strategy has a fast rate to achieve the solution and a very low complexity, and it achieves almost optimum performance.