DocumentCode :
2177783
Title :
On spectrum sharing between energy harvesting cognitive radio users and primary users
Author :
El Shafie, Ahmed ; Ashour, Mahmoud ; Khattab, Tamer ; Mohamed, Amr
Author_Institution :
Wireless Intell. Networks Center (WINC), Nile Univ., Giza, Egypt
fYear :
2015
fDate :
16-19 Feb. 2015
Firstpage :
214
Lastpage :
220
Abstract :
This paper investigates the maximum throughput for a rechargeable secondary user (SU) sharing the spectrum with a primary user (PU) plugged to a reliable power supply. The SU maintains a finite energy queue and harvests energy from natural resources and primary radio frequency (RF) transmissions. We propose a power allocation policy at the PU and analyze its effect on the throughput of both the PU and SU Furthermore, we study the impact of the bursty arrivals at the PU on the energy harvested by the SU from RF transmissions. Moreover, we investigate the impact of the rate of energy harvesting from natural resources on the SU throughput. We assume fading channels and compute exact closed-form expressions for the energy harvested by the SU under fading. Results reveal that the proposed power allocation policy along with the implemented RF energy harvesting at the SU enhance the throughput of both primary and secondary links.
Keywords :
cognitive radio; energy harvesting; radio spectrum management; telecommunication power management; energy harvesting cognitive radio user; finite energy queue; power allocation policy; primary radio frequency transmissions; primary users; rechargeable secondary user; reliable power supply; spectrum sharing; Computer numerical control; Conferences; Decision support systems; Energy harvesting; Handheld computers; Indexes; Radio frequency; Bernoulli process; Cognitive radio; Poisson arrivals; RF transmissions; energy harvesting; queues;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computing, Networking and Communications (ICNC), 2015 International Conference on
Conference_Location :
Garden Grove, CA
Type :
conf
DOI :
10.1109/ICCNC.2015.7069343
Filename :
7069343
Link To Document :
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