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초록
In this paper, we study the power allocation for multiband coded OFDM systems. With limited feedback, we propose an effective power allocation method across OFDM bands to maximize the throughput and achieve the quality of service target. To facilitate the proposed method, two optimization algorithms based on greedy and dynamic programming principles are discussed. The trade-off between performance and complexity is provided. Simulation results show that the proposed power allocation mechanism allows a signal to noise ratio gain of 2 dB at a goodput of 2.5 bit per second per Hz over the multiband OFDM systems with equal power allocation. ? 2011 IEEE.
키워드
Coded OFDM; Dynamic programming principle; Equal power allocation; Good put; Limited feedback; Multi-band OFDM systems; Multiband; Optimization algorithms; Power allocations; Signal to noise ratio gains; Algorithms; Dynamic programming; Orthogonal frequency division multiplexing; Quality of service; Signal to noise ratio; Telecommunication systems
- 제목
- Power allocation for multiband coded OFDM systems with limited feedback
- 저자
- To, Duc; Nguyen, Huan X.; Choi, Jinho; Choi, Seungwon
- 발행일
- 2011-09
- 유형
- Conference Paper
- 저널명
- IEEE Vehicular Technology Conference
- 페이지
- 1 ~ 5