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Cognitive radio is an emerging technique to improve the utilization of radio frequency spectrum in wireless communication networks. In this paper, we consider the problem of spectrum sharing among a few primary users and multiple secondary users through auction games. With the second-price auction and VCG auction, we adopt a utility function to obtain the(More)
The dynamic spectrum access technology can achieve near-optimal spectrum utilization by allowing cognitive users sense and utilize available spectrum opportunistically. Time overhead and fairness are part of the key evaluation criteria for the spectrum allocation algorithms, and a naive spectrum assignment can lead to significant unfairness and system(More)
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