Cooperative communication with spectrum sharing has been proved to be an efficient way to reduce energy consumption. In this work an optimal power allocation algorithm is proposed for mobile cooeprative beamforming networks, where several secondary users collaboratively act as relay nodes to assiste the transmission of a primary user in reward of transmitting their own information.
Ling, C. [et al.]. Efficient cognitive radio networks with cooperative beamforming. A: MC and Scientific Meeting. "Proceedings of the COST IC1004 11th MC and Scientific Meeting". Krakow: 2014.