Title
An improved cooperative jamming strategy for PHY security in a multi-hop communications system
Abstract
In this paper, an improved cooperative jamming (CJ) strategy is developed for physical layer (PHY) security in a multi-hop wireless communication system which employs beamforming in the last hop. Users are assigned to independent groups based on the merger-and-split rule in a coalition game. The secrecy capacity for a valid coalition is a non-convex optimization problem which cannot easily be solved. Therefore, restrictions are added to transform this into a convex problem, and this is solved to obtain a suboptimal closed-form solution for the secrecy capacity. Simulation results are presented which show that the proposed strategy outperforms other methods such as non-cooperation, relay cooperation, and previous CJ approaches in terms of the secrecy capacity. Further, it is shown that the proposed multi-hop solution is suitable for long distance communication systems.
Year
DOI
Venue
2017
10.1109/PACRIM.2017.8121886
2017 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM)
Keywords
Field
DocType
physical layer (PHY) security,secrecy capacity,cooperative jamming (CJ),beamforming,multi-hop communications,eavesdropper
Computer science,Secrecy,Computer network,Communications system,Physical layer,PHY,Convex optimization,Optimization problem,Jamming,Relay
Conference
ISSN
ISBN
Citations 
2154-5952
978-1-5386-0701-5
0
PageRank 
References 
Authors
0.34
12
4
Name
Order
Citations
PageRank
Conghui Cao182.51
hao zhang212116.46
Tingting Lu3265.00
T. Aaron Gulliver4864143.47