Improved Genetic Algorithm Based Bit and Subcarrier Allocation Scheme for Efficient Resource Use in Multiuser OFDM Systems 


Vol. 33,  No. 11, pp. 1095-1104, Nov.  2008


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  Abstract

In multiuser OFDM systems, subcarrier and bit allocation plays an important role for the efficient resource use. However, in multiuser adaptive allocation as a non-linear problem, it is impractical to compute all to get the best solution because of the complexity. We set the goal of minimizing the transmit power while satisfying the BER and minimum bits required to transmit through the highest fitness combination of subcarriers and users. The proposed improved genetic algorithm employs the diversity of adaptive allocation more than existing genetic algorithm. Therefore, from the numerical simulation results, we find that the proposed heuristic algorithm has more performance than the existing algorithms.

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  Cite this article

[IEEE Style]

J. Song, S. Kim, K. Chang, D. Kim, "Improved Genetic Algorithm Based Bit and Subcarrier Allocation Scheme for Efficient Resource Use in Multiuser OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 11, pp. 1095-1104, 2008. DOI: .

[ACM Style]

Jung-sup Song, Sung-soo Kim, Kapseok Chang, and Dong-hoi Kim. 2008. Improved Genetic Algorithm Based Bit and Subcarrier Allocation Scheme for Efficient Resource Use in Multiuser OFDM Systems. The Journal of Korean Institute of Communications and Information Sciences, 33, 11, (2008), 1095-1104. DOI: .

[KICS Style]

Jung-sup Song, Sung-soo Kim, Kapseok Chang, Dong-hoi Kim, "Improved Genetic Algorithm Based Bit and Subcarrier Allocation Scheme for Efficient Resource Use in Multiuser OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 11, pp. 1095-1104, 11. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880