대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2004년도 학술대회 논문집 정보 및 제어부문
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- Pages.218-220
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- 2004
다중 사용자 OFDM 시스템을 위한 효율적이고 빠른 비트 배정 알고리즘
An Efficient and Fast Bit Allocation Algorithm for Multiuser OFDM Systems
- 발행 : 2004.11.12
초록
Orthogonal frequency division multiplexing(OFDM) is one of the most promising technique for next generation wireless broadband communication systems. In this paper, we propose a new bit allocation algorithm in multiuser OFDM. The proposed algorithm is derived from the geometric progression of the additional transmit power of subcarriers and the arithmetic-geometric means inequality. The simulation shows that this algorithm has similar performance to the conventional adaptive bit allocation algorithm and lower computational complexity than the existing algorithms.