NDLI: Physical layer security in cognitive radio network with energy harvesting relay and jamming in the presence of direct link

Content Provider	IET Digital Library
Author	Maji, Pranabesh Roy, Sanjay Dhar Kundu, Sumit
Abstract	In this paper, we examine the physical (PHY) layer security in terms of secrecy outage of an energy harvesting (EH) relay based underlay cognitive radio network (CRN) in the presence of an eavesdropper. A dual hop communication network consisting of an energy harvesting relay that harvests energy from radio transmission of secondary user (SU) network using a time switching relay (TSR) scheme is studied. The relay works in decode and forward (DF) mode and forwards the confidential message to the destination, if it is successfully decoded at the relay. The advantage of the direct link between source to destination is exploited, if the relay link is in outage. Furthermore, simultaneous transmission of message signal and jamming signal to the legitimate nodes and illegitimate node respectively degrades the eavesdropping link capacity. We evaluate the secrecy outage probability (SOP) of the network under study. It is found that exploiting the direct link at the destination increases the secrecy in transmission as compared to the case of only relay based transmission without direct link. The impact of interference threshold, energy harvesting time, power allocation factor, target data rate, target secrecy rate and direct link on SOP of this proposed network is investigated.
Starting Page	1389
Ending Page	1395
Page Count	7
ISSN	17518628
Volume Number	12
e-ISSN	17518636
Issue Number	Issue 11, Jul (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/12/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2017.0573
Journal	IET Communications
Publisher Date	2018-03-22
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Cognitive Radio Cognitive Radio Network Communication Switching Cooperative Communication Decode And Forward Communication Decode And Forward Mode Direct Link Dual Hop Communication Network Dual Hop Secondary Network Eavesdropping Link Capacity EH Relay EH Time Electromagnetic Compatibility Energy Harvesting Energy Harvesting Relay Interference Interference Threshold Jamming Jamming Signal Message Signal Transmission Physical Layer Security Power Allocation Factor Primary User Receiver Probability Probability Theory Radio Frequency Interference Radio Link Radio Link And Equipment Radio Network Radio Transmission Relay Link Relay Network Reliability Secondary User Secrecy Outage Probability Statistics Stochastic Linearised SCUC SU Network Target Data Rate Target Secrecy Rate Telecommunication Telecommunication Network Reliability Telecommunication Power Management Telecommunication Switching Time-switching Relay Scheme Underlay CRN
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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