A Fast Power Allocation Strategy for OFDM Systems

A Fast Power Allocation Strategy for OFDM Systems

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 dual...

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Veröffentlicht in:IEEE transactions on communications 2010-10, Vol.58 (10), p.2765-2769
Hauptverfasser: PAO, Wei-Cheng, CHEN, Yung-Fang
Format: Artikel
Sprache:eng
Schlagworte:
Allocations
Applied sciences
Complexity
Computational complexity
Exact sciences and technology
Fading
Information, signal and communications theory
Multiplexing
OFDM
Optimization
Orthogonal Frequency Division Multiplexing
orthogonal frequency division multiplexing (OFDM)
Power allocation
resource allocation
Resource management
Signal and communications theory
Strategy
Subcarriers
Telecommunications and information theory
Tuning
Wireless communication
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Beschreibung
Zusammenfassung: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.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2010.082710.080170