DocumentCode :
41198
Title :
Secrecy Outage Analysis of Underlay Cognitive Radio Unit Over Nakagami- 
Fading Channels
Author :
Chaoqing Tang ; Gaofeng Pan ; Tingting Li
Author_Institution :
Sch. of Electron. & Inf. Eng., Southwest Univ., Chongqing, China
Volume :
3
Issue :
6
fYear :
2014
fDate :
Dec. 2014
Firstpage :
609
Lastpage :
612
Abstract :
An underlay cognitive radio unit over Nakagami- m fading channel, which consists of a source S, a secondary user (SU), and an eavesdropper who wants to eavesdrop the information between S and SU, is considered. The transmit power of S is simultaneously adjusted according to the channel state information of S-PU link and a given threshold interference power that the primary user can tolerate. Closed-form analytical expressions of secrecy outage probability and the probability of nonzero secrecy capacity have been derived. The validity of our analysis models is verified by simulation results.
Keywords :
Nakagami channels; cognitive radio; radiofrequency interference; telecommunication security; Nakagami- m fading channels; channel state information; closed form analytical expressions; information eavesdropper; nonzero secrecy capacity; secondary user; secrecy outage analysis; secrecy outage probability; source transmit power; threshold interference power; underlay cognitive radio; Analytical models; Capacity planning; Cognitive radio; Computational modeling; Fading; Interference; Power outages; Nakagami- $m$; Secrecy outage probability; probability of nonzero secrecy capacity; underlay cognitive radio networks (CRNs);
fLanguage :
English
Journal_Title :
Wireless Communications Letters, IEEE
Publisher :
ieee
ISSN :
2162-2337
Type :
jour
DOI :
10.1109/LWC.2014.2350501
Filename :
6882146
Link To Document :
