Dynamic Spectrum Sharing: A Game Theoretical Overview

Abstract

In order to fully utilize the scarce spectrum resources, with the development of cognitive radio technologies, dynamic spectrum sharing becomes a promising approach to increase the efficiency of spectrum usage. Game theoretical dynamic spectrum sharing has been extensively studied for more flexible, efficient, and fair spec- trum usage through analyzing the intelligent behaviors of network users equipped with cogni- tive radio devices. This article provides a game theoretical overview of dynamic spectrum shar- ing from several aspects: analysis of network users' behaviors, efficient dynamic distributed design, and optimality analysis.