Cooperative Game Theory Approach for the Cognitive Radio Users

Wireless mobile communication plays a vital role in our life. The facility of anywhere anytime communication services availability can be handled by management of resources efficiently. The quality of service offered to users may be enhanced through innovative protocols and new technologies. Future trends in wireless computing should take into account resource allocation, resource sharing and network/terminal cooperation as well. Cognitive radio is novel way to solve spectrum underutilization problem and to improve utilization of electromagnetic radio spectrum. In cognitive network the radio parameters were modified to achieve network objectives, which can be through-put maximization, reliability, or spectral or energy efficiency. In these networks, the licensed spectrum and dynamic spectrum sharing is based on opportunistic communication which plays an important role in resource allocation. The traditional spectrum sharing approaches based on fully cooperative, static and centralised network environment are no longer applicable. Cognitive radio networks (CRN) has created a significant research interest due to the unique opportunistic spectrum sharing of channels when not used by the licensed user (known as white spaces). Game theory has been recognized as an important tool for studying, modelling and analysing the cognitive interaction process.