DocumentCode
1892097
Title
Cooperative spectrum sensing in cognitive radio networks under Gaussian fusion channels
Author
Xiong, Gang ; Kishore, Shalinee
Author_Institution
Dept. of Electr. & Comput. Eng., Lehigh Univ., Bethlehem, PA
fYear
2009
fDate
18-20 March 2009
Firstpage
675
Lastpage
680
Abstract
This paper presents cooperative spectrum sensing in cognitive radio networks under Gaussian fusion channels. The global detection performance is evaluated based on Neyman-Pearson (NP) detection and using equal gain combining (EGC) fusion rule. It is shown that, under a global signal to noise ratio (SNR) constraint, the global detection performance can be maximized by choosing an appropriate local energy threshold. Furthermore, asymptotic performance is investigated assuming large numbers of secondary users and samples used for local energy calculation.
Keywords
Gaussian channels; cognitive radio; signal detection; spread spectrum communication; Gaussian fusion channel; asymptotic performance; cognitive radio network; cooperative spectrum sensing; signal-to-noise ratio; Cognitive radio; Detectors; Diversity reception; Fading; Random variables; Signal to noise ratio; Statistics; Testing; White spaces; Wireless sensor networks;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Sciences and Systems, 2009. CISS 2009. 43rd Annual Conference on
Conference_Location
Baltimore, MD
Print_ISBN
978-1-4244-2733-8
Electronic_ISBN
978-1-4244-2734-5
Type
conf
DOI
10.1109/CISS.2009.5054803
Filename
5054803
Link To Document