Cognitive Spectrum Sensing with Multiple Primary Users in Rayleigh Fading Channels

Electronics

Salam Al-Juboori¹  Sattar J. Hussain² 

[1] Department of Electrical and Computer Engineering., Ryerson University, Toronto, ON M5B 2K3, Canada;

关键词: cognitive radio (CR);    spectrum sensing;    spherical detector;    Rayleigh fading channels;   

DOI  :  10.3390/electronics3030553

来源: mdpi

【 摘 要 】

Accurate detection of white spaces is crucial in cognitive radio networks. Initial investigations show that the accurate detection in a multiple primary users environment is challenging, especially under severe multipath conditions. Among many techniques, recently proposed eigenvalue-based detectors that use random matrix theories to eliminate the need of prior knowledge of the signals proved to be a solid approach. In this work, we study the effect of Rayleigh multipath fading channels on spectrum sensing in a multiple primary user environment for a pre-proposed detector called the spherical detector using the eigenvalue approach. Simulation results show interesting outcomes.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.