A probabilistic MAC for cognitive radio systems with energy harvesting nodes

Author

Ali, Ramy E. ; Digham, Fadel F. ; Seddik, Karim G. ; Nafie, Mohammed ; El-Keyi, Amr ; Zhu Han

Author_Institution

Wireless Intell. Networks Center (WINC), Nile Univ., Giza, Egypt

fYear

2014

fDate

3-5 Dec. 2014

Firstpage

143

Lastpage

147

Abstract

In this paper, we consider a cognitive radio (CR) system where the secondary user (SU) harvests energy from both the nature resources and the primary user (PU) radio frequency (RF) signal. We propose an energy-based probabilistic access scheme in which SU probabilistically accesses and senses the primary channel. The decision is based on the available energy and the PU´s activity. We investigate the problem of maximizing the SU´s success rate provided that the PU average quality of service (QoS) constraint is satisfied. We also assume multi-packet reception (MPR) capability and sensing errors under a Rayleigh fading channel. Numerical results show the effectiveness of the proposed probabilistic access scheme.

Keywords

Rayleigh channels; access protocols; cognitive radio; energy harvesting; fading channels; probability; quality of service; wireless channels; CR system; PU; QoS constraint; Quality of Service; RF signal; Rayleigh fading channel; SU harvests energy; cognitive radio systems; energy harvesting nodes; multipacket reception; primary channel; primary user; probabilistic MAC; radio frequency; secondary user; Cognitive radio; Energy harvesting; Probabilistic logic; Quality of service; Radio frequency; Sensors; Cognitive radio; QoS; energy harvesting;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal and Information Processing (GlobalSIP), 2014 IEEE Global Conference on

Conference_Location

Atlanta, GA

Type

conf

DOI

10.1109/GlobalSIP.2014.7032095

Filename

7032095