NDLI: Joint optimal power allocation and relay selection to establish secure transmission in uplink transmission of untrusted relays network

Content Provider	IET Digital Library
Author	Kuhestani, Ali Mohammadi, Abbas Masoudi, Meysam
Abstract	In this paper, the authors deal with secure transmission in two-hop amplify-and-forward network with untrusted relays. To prevent the untrusted relays from intercepting the source message and to achieve positive secrecy rate, the destination-based cooperative jamming technique is used. The authors propose joint secure best relay selection (BRS) and optimal power allocation (OPA) for uplink transmission of a cellular network when the base station is equipped with very large-scale antenna arrays. Then, the common performance metrics such as ergodic secrecy rate (ESR) and secrecy outage probability are evaluated for the optimised network. Moreover, the diversity order and diversity-multiplexing tradeoff of the system are examined. The authors obtain that the diversity order of joint BRS and OPA scenario is equal to number of relays. Finally, some numerical and simulation results are presented to validate the theoretical analysis and to show the advantages offered by the presented systems. They reveal interesting results that, by increasing number of untrusted relay nodes, the system performance improves. For example, for target ESR 2 bits/s/Hz and ten untrusted relay nodes, the optimised network saves about 5 dB for uplink transmission, in comparison with the system applying the BRS and equal power allocation.
Starting Page	30
Ending Page	36
Page Count	7
ISSN	20474954
Volume Number	5
e-ISSN	20474962
Issue Number	Issue 2, Mar (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-net/5/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-net.2015.0035
Journal	IET Networks
Publisher Date	2016-03-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Amplify And Forward Communication Antenna Array Cellular Network Cellular Radio Destination-based Cooperative Jamming Diversity Order Diversity Reception Diversity-multiplexing Tradeoff Electromagnetic Compatibility Ergodic Secrecy Rate Interference Jamming Joint Optimal Power Allocation Joint Secure Best Relay Selection Mobile Radio System Optimised Network Probability Relay Network Resource Allocation Secrecy Outage Probability Secure Transmission Source Message Statistics Telecommunication Telecommunication Security Two-hop Amplify And Forward Network Untrusted Relay Network Untrusted Relay Node Uplink Transmission Very Large-scale Antenna Array
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Management Science and Operations Research Computer Networks and Communications

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