Communication Framework in cognitive radio networks

Mihaela Cardei, PI

The radio spectrum is a finite resource, which is now in great demand with the proliferation of new applications and services such as cellular phones, radio and television broadcast, Wi-Fi, sensor networks, broadband wireless Internet access, and so on. Large portions of the U.S. licensed spectrum are underutilized.

project13-cognitiveTo address the issue of spectrum scarcity, new communication paradigms have been proposed. Cognitive radio has emerged as a promising technology to improve the overall spectrum usage by opportunistically allowing secondary users to utilize unused licensed bands, referred to as spectrum holes, while protecting the primary users’ communication. Cognitive radio networks have cognitive and reconfigurable properties and the capability to detect unoccupied spectrum holes and change frequency for end-to-end communication. This project is aiming to design a communication framework that allows secondary users to communicate using the licensed spectrum, without disturbing the primary users’ communication.

To accomplish this, a learning-based network management approach will be investigated for network resource management. The proposed framework will improve spectrum utilization and prevent against intentional jamming.

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