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`Green' Cooperative Spectrum Sharing Communication

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3 Author(s)
Dandan Liu ; BUPT, Beijing, 100876, China ; Wenbo Wang ; Wenbin Guo

Financial and environmental considerations provide new trends in wireless communication network known as green communication. The main object of green communication is to save energy consumption of the communication system as much as possible with users' quality of service (QoS) guaranteed. In this paper, cooperative spectrum sharing is investigated as a means of energy saving. We present an optimal power and time allocation to minimize the overall energy consumption under service quality constraints in cooperative spectrum sharing network. The proposed technique can achieve energy saving while offering SUs' communication opportunities. Numerical results demonstrate the validity of the proposed technique.

Published in:

IEEE Communications Letters  (Volume:17 ,  Issue: 3 )