Paper Info
Title
Cooperative Interference and Power Allocation in a Bidirectional Untrusted Relay Network With Channel Estimation Errors.
Abstract
The secure communication of a two-way untrusted amplify-and-forward relay network under the imperfect channel state information is investigated. To improve the secrecy of the relay wiretap system, artificial noise is introduced into each source signal. The total and the individual power constraint conditions are considered. To maximize the attainable secrecy rate, an iterative power allocation algorithm is designed under the total power constraint. As a more practical system design, a suboptimal power allocation scheme is proposed. For the sake of comparison, the security performances of the noncooperative interference strategy and the one-way cooperative interference strategy are also investigated. Simulation results demonstrate that the proposed bidirectional cooperative interference schemes perform better in the secrecy rate of communication system.
Year
DOI
Venue
2018
10.1109/ACCESS.2018.2868500
IEEE ACCESS
Keywords
Field
DocType
Untrusted relay network,imperfect channel state information,physical layer security,cooperative interference,power allocation
Computer science,Secrecy,Computer network,Communication channel,Communications system,Interference (wave propagation),Artificial noise,Jamming,Relay,Secure communication
Journal
Volume
ISSN
Citations 
6
2169-3536
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Lihua Gong110412.30
Xiaoxiu Ding200.34
Qibiao Zhu310.71
Nanrun Zhou414217.62