Game Based Self-Coexistence Schemes in Cognitive Radio Networks

Cognitive radio networks are seen as the key enabling technology to address the spectrum shortage problem in wireless applications and services.One of the major challenges for implementing cognitive radio networks is to guarantee self-coexistence among devices, which means address interference issues among devices operating under the same set of rules and sharing the same resources.Among the several mathematical tools used to address the self-coexistence problem, we recognize the game theoretic approach as the most powerful.In this chapter, first we present an overview of cognitive radio technology focusing on the importance of guaranteed self-coexistence among cognitive devices.Then, we analyze the pros and cons of several game theoretic approaches proposed in the literature in order to model the self-coexistence problem.We conclude by describing non-cooperative and cooperative game paradigms to model the self-coexistence problem in cognitive radio networks.