Modeling and Analysis of Multi-User Spectrum Selection Schemes in Cognitive Radio Networks

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Executive Summary

In this paper, the authors study the spectrum selection problem in cognitive radio network with emphasis on resolving the channel contention and the spectrum sharing issues of multiple secondary users. For the traditional channel selection methods, the secondary users select their operating channels based on various criteria. However, these methods neglect the effect that multiple secondary users may content for the same channel if they have the same consensus on one particular good channel. Compared to the existing spectrum selection methods, they consider the sensing-based and the probability-based spectrum selection schemes which can prevent too many secondary users from contending the same channel.

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