Title :
Relay Aided Lifetime Prolongation for User Equipments in Hotspots
Author :
Ni, Saifeng ; Zhang, Sihai ; Zhou, Wuyang ; Xia, Bin
Author_Institution :
Wireless Inf. Network Lab., USTC, Hefei, China
Abstract :
In this paper, lifetime of user equipments in hotspots is prolonged by combining relay technology and power control policy. As to both cable relay and wireless relay scenarios, effective power control policies are adopted to maximize energy efficiency under the premise of guaranteeing QoS. In addition, the closed-form results for both power control and lifetime gain are obtained, which match well with numerical results. This work extends our understanding about the effect of relay technology on UE´s lifetime prolongation.
Keywords :
power control; quality of service; telecommunication control; QoS; cable relay; hotspots is prolonged; lifetime gain; power control policies; power control policy; relay aided lifetime prolongation; relay technology; user equipments lifetime; wireless relay; Energy consumption; Energy efficiency; Gain; Power control; Relays; Signal to noise ratio; Tin;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2011 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-8328-0
DOI :
10.1109/VETECF.2011.6092852