Secure Transmission with Optimal Power Allocation in Untrusted Relay Networks

Lifeng Wang; Maged Elkashlan; Jing Huang; Nghi H. Tran; Trung Q. Duong

doi:10.1109/WCL.2014.031114.140018

Secure Transmission with Optimal Power Allocation in Untrusted Relay Networks

Lifeng Wang, Maged Elkashlan, Jing Huang, Nghi H. Tran, Trung Q. Duong

Research output: Contribution to journal › Article › peer-review

138 Citations (Scopus)

Abstract

We consider the problem of secure transmission in two-hop amplify-and-forward untrusted relay networks. We analyze the ergodic secrecy capacity (ESC) and present compact expressions for the ESC in the high signal-to-noise ratio regime. We also examine the impact of large scale antenna arrays at either the source or the destination. For large antenna arrays at the source, we confirm that the ESC is solely determined by the channel between the relay and the destination. For very large antenna arrays at the destination, we confirm that the ESC is solely determined by the channel between the source and the relay.

Original language	English
Pages (from-to)	289-292
Number of pages	4
Journal	IEEE Wireless Communications Letters
Volume	3
Issue number	3
Early online date	18 Mar 2014
DOIs	https://doi.org/10.1109/WCL.2014.031114.140018
Publication status	Published - Jun 2014

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)
Electrical and Electronic Engineering
Control and Systems Engineering

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10.1109/WCL.2014.031114.140018

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title = "Secure Transmission with Optimal Power Allocation in Untrusted Relay Networks",

abstract = "We consider the problem of secure transmission in two-hop amplify-and-forward untrusted relay networks. We analyze the ergodic secrecy capacity (ESC) and present compact expressions for the ESC in the high signal-to-noise ratio regime. We also examine the impact of large scale antenna arrays at either the source or the destination. For large antenna arrays at the source, we confirm that the ESC is solely determined by the channel between the relay and the destination. For very large antenna arrays at the destination, we confirm that the ESC is solely determined by the channel between the source and the relay.",

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AU - Wang, Lifeng

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AU - Duong, Trung Q.

PY - 2014/6

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N2 - We consider the problem of secure transmission in two-hop amplify-and-forward untrusted relay networks. We analyze the ergodic secrecy capacity (ESC) and present compact expressions for the ESC in the high signal-to-noise ratio regime. We also examine the impact of large scale antenna arrays at either the source or the destination. For large antenna arrays at the source, we confirm that the ESC is solely determined by the channel between the relay and the destination. For very large antenna arrays at the destination, we confirm that the ESC is solely determined by the channel between the source and the relay.

AB - We consider the problem of secure transmission in two-hop amplify-and-forward untrusted relay networks. We analyze the ergodic secrecy capacity (ESC) and present compact expressions for the ESC in the high signal-to-noise ratio regime. We also examine the impact of large scale antenna arrays at either the source or the destination. For large antenna arrays at the source, we confirm that the ESC is solely determined by the channel between the relay and the destination. For very large antenna arrays at the destination, we confirm that the ESC is solely determined by the channel between the source and the relay.

U2 - 10.1109/WCL.2014.031114.140018

DO - 10.1109/WCL.2014.031114.140018

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EP - 292

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JF - IEEE Wireless Communications Letters

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Secure Transmission with Optimal Power Allocation in Untrusted Relay Networks

Abstract

ASJC Scopus subject areas

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