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Efficient Resource Allocation Algorithm for Multiuser OFDM Systems  

Lee, Jung-Yoon (삼성전기 OS사업부 ISM 선행개발G)
Yoon, Dong-Weon (한양대학교 전자통신컴퓨터공학부)
Park, Sang-Kyu (한양대학교 전자통신컴퓨터공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.32, no.4A, 2007 , pp. 344-350 More about this Journal
Abstract
Start after striking space key 2 times. Lately, a lot of researches have been done on the resource allocation for multiuser OFDM(Orthogonal Frequency Division Multiplexing) systems due to its spectral efficiency for high-rate multimedia data services. For multimedia services in which every user is guaranteed to have minimum required bit rate and bit error probability, it is critical to utilize the limited resources efficiently to improve the performance of the system. The introduced allocation method improves spectral efficiency to use the left subcarriers in Zhang's algorithm. By using this method, the system can provide services to more users constantly, except for a bit increasing complexity and memory for deciding the left subcarriers and reallocating the subcarriers.
Keywords
Multiuser; OFDM System; Adaptive Allocation; Subcarrier Allocation; Multimedia;
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