Paper Info
Title
Joint Relay Selection and Destination Assisted Cooperative Jamming with Power Allocation for Secure DF Relay Network.
Abstract
To enhance the physical-layer security of a decode-and-forward (DF) cooperative relay network in the presence of a potential eavesdropper, a joint relay selection and destination assisted cooperative jamming (CJ) scheme is proposed. In phase I, the source transmits its confidential signal, and concurrently, it cooperates with the friendly jammers and the destination to send jamming signals to confuse the eavesdropper without affecting the forwarding relay which is preselected. In phase II, the forwarding relay retransmits the decoded signal, and simultaneously, the particular relay cooperates with the friendly jammers to send jamming signal to confuse the eavesdropper without affecting the destination. The achievable secrecy rate maximization (SRM) problem is investigated by optimally allocating the power between the data signal and jamming signals. Although SRM problem is non-convex, the power allocation problem can be solved by a bisection method together with a one-dimensional search. Optimal relay selection and suboptimal relay selection schemes are also proposed to further improve the secrecy rate. Simulation results are presented to show that the joint scheme can attain higher achievable secrecy rates than some existing works.
Year
DOI
Venue
2019
10.1007/s10776-019-00442-x
International Journal of Wireless Information Networks
Keywords
Field
DocType
Decode-and-forward, Jamming, Physical layer security, Power allocation, Relay selection
Data signal,Bisection method,Computer science,Secrecy,Computer network,Real-time computing,Relay network,Jamming,Maximization,Relay
Journal
Volume
Issue
ISSN
26
3
1068-9605
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Shaobo Jia122.09
Jia Yan Zhang2105.24
Honglin Zhao364.82
Ruoyu Zhang421.75