Resource Allocation for Multiuser OFDM System Based on Genetic Algorithm

Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (11): 61-65.

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Resource Allocation for Multiuser OFDM System Based on Genetic Algorithm

Wang Yong-xue Chen Fang-jiong Wei Gang

College of Electronic and Information Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China

Received:2005-01-05 Online:2005-11-25 Published:2005-11-25
Contact: 王永学(1975-)，男，博士生，主要从事下一代移动通信技术研究 E-mail:wyxjohn@163.com
About author:王永学(1975-)，男，博士生，主要从事下一代移动通信技术研究
Supported by:
国家自然科学基金资助项目(60402014)；广东省自然科学基金资助项目(31390)

Abstract

Abstract:

A genetic algorithm-based algorithm is proposed for multiuser OFDM (Orthogonal Frequency Division Multiplexing)system to acquire the subcarrier and bit allocation that needs the least transmitting power.By adding some good-gene individuals to the initial population,the convergence speed of the genetic algorithm is greatly im-proved and the complexity of the algorithm is decreased.Simulated results show that,compared with static subcarri-er allocation schemes,namely,TDMA(Time Division Multiplexing Access)and FDMA(Frequency Division Mul-tiplexing Access),the proposed algorithm is of a considerable plus of 5～1 5 dB,which is greater than that obtained by any other dynamic allocation algorithms(1～2 dB).

Key words: genetic algorithm, O~hogonal Frequency Division Multiplexing(OFDM), Time Division Multiplexing Access(TDMA), Frequency Division Multiplexing Access(FDMA)

Wang Yong-xue Chen Fang-jiong Wei Gang. Resource Allocation for Multiuser OFDM System Based on Genetic Algorithm[J]. Journal of South China University of Technology (Natural Science Edition), 2005, 33(11): 61-65.

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Resource Allocation for Multiuser OFDM System Based on Genetic Algorithm

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