Node Selection Technique for Distributed Beamforming in Green Cognitive Radio Networks

The wide deployment of wireless sensor nodes for varieties of applications calls the need for distributed beamforming as a cooperative scheme to efficiently use spectrum, to improve communication range and to save precious battery power during transmission. Given that there are a large set of cooperative cognitive radio users, ensuring the...

Distributed Beamforming for Cognitive Radio Networks

Cognitive radio (CR) is an approach with high potentials in the effort of battling spectrum scarcity, introduced by J. Mitola in the late 90’s. It is capable of sensing the communication environment and adapting to it by changing its radio parameters. Beamforming technique allows the cognitive users to opportunistically access the licensed...