Multi-slot Spectrum Sensing in Fading Channels for a Cooperative Cognitive Radio Network

Author

Bhowmick, Abhijit ; Roy, S.D. ; Kundu, Sumit

Author_Institution

ECE Dept., Bengal Coll. of Eng. & Technol., Durgapur, India

fYear

2014

Firstpage

421

Lastpage

424

Abstract

The performance of cooperative spectrum sensing (CSS) with multi-slot sensing has been investigated. A number of cognitive radio (CR) enabled users sense the primary user (PU) spectrum in multiple sensing mini-slots and the decision of each slot is combined using OR rule to evaluate the local decision about PU. All the CRs send their local decisions over faded reporting channels (R-channel) to fusion centre (FC). FC takes the final decision about PU on the basis of majority logic fusion rule. The performance of spectrum sensing has been investigated in terms of detection probability and missed detection probability for different sensing parameters such as sensing threshold, number of mini-slots and sensing channel SNR (S-SNR) etc.

Keywords

cognitive radio; cooperative communication; fading channels; signal detection; CSS; OR rule; R-channel; cooperative cognitive radio network; cooperative spectrum sensing; detection probability; fading channels; fusion centre; majority logic fusion rule; missed detection probability; multislot spectrum sensing; primary user spectrum; reporting channels; Binary phase shift keying; Cognitive radio; Probability density function; Rayleigh channels; Sensors; Signal to noise ratio; cognitive radio; majority; mini-slot;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence and Communication Networks (CICN), 2014 International Conference on

Print_ISBN

978-1-4799-6928-9

Type

conf

DOI

10.1109/CICN.2014.99

Filename

7065518