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The conventional adaptive resource allocation schemes for Orthogonal Frequency Division Multiple Access (OFDMA) systems cannot guarantee that the peak power of its time-domain modulated signal shall not exceed the transmitter peak power limit. When such a limit is exceeded, the transmitter creates extra in-band and adjacent-band interferences that were not considered by the conventional resource allocation...
A novel resource allocation algorithm for multiuser OFDM systems with proportional fairness is presented in this paper. The algorithm aims to maximum the total transmit rate subject to the overall transmit power constraint and proportional user rate constraint with knowledge of the channel information. The proposed algorithm divides the problem into two steps: bit loading and subcarrier allocation...
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