Orthogonal frequency division multiplexing (OFDM)‐based orthogonal frequency division multiple access (OFDMA) has emerged as a promising transmission technology for next generation wireless systems. In a multiuser scenario, adaptive radio resource allocation can significantly improve the performance of OFDMA systems. In this article, an overview of the major state‐of‐the‐art approaches to adaptive resource allocation in the OFDMA systems is provided. Several open research issues are outlined.
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Chieochan et al. (2008) studied this question.
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