Modelling and Mitigation of Open Challenges in Cognitive Radio Networks Using Game Theory

Cognitive radio networks (CRNs) are being envisioned as drivers of the next generation of ad hoc wireless networks due to their ability to provide communications resilience in continuously changing environments through the use of dynamic spectrum access. However, the deployment of such networks is hindered by the vulnerabilities that these networks are exposed to. Securing communications while exploiting the flexibilities offered by CRNs still remains a daunting challenge. In this survey, we put forward concerns relating to security, spectrum sensing and management, and resource allocation and performance of CRNs and model mitigation techniques using game theory. Game theory can be a useful tool with its ability to optimize in an environment of conflicting interests. Finally, we discuss the research challenges that must be addressed if CRNs are to become a commercially viable technology.