Resource allocation for secure multicarrier AF relay system under total power constraint

Abhishek Jindal; Ranjan Bose

doi:10.1109/LCOMM.2014.2379652

Resource allocation for secure multicarrier AF relay system under total power constraint

Abhishek Jindal, Ranjan Bose

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

25 Scopus citations

Abstract

In this letter, we consider an amplify-and-forward-relay-aided secure multicarrier communication between two nodes with an eavesdropper. We solve the sum secrecy rate maximization problem by solving the following two problems: 1) subcarrier usage policy at the source and the relay; and 2) power allocation among subcarriers between the source and the relay under a total system power constraint. We provide a suboptimal closed-form solution to the problem that involves mixed-integer variables and a nonlinear fractional function. The numerical results demonstrate an improved sum rate by the proposed scheme over a scenario without relay.

Original language	English
Article number	6981916
Pages (from-to)	231-234
Number of pages	4
Journal	IEEE Communications Letters
Volume	19
Issue number	2
DOIs	https://doi.org/10.1109/LCOMM.2014.2379652
State	Published - Feb 1 2015
Externally published	Yes

Keywords

amplifyand-forward relay
physical layer security
secure multicarrier communication
secure sum rate

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10.1109/LCOMM.2014.2379652

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abstract = "In this letter, we consider an amplify-and-forward-relay-aided secure multicarrier communication between two nodes with an eavesdropper. We solve the sum secrecy rate maximization problem by solving the following two problems: 1) subcarrier usage policy at the source and the relay; and 2) power allocation among subcarriers between the source and the relay under a total system power constraint. We provide a suboptimal closed-form solution to the problem that involves mixed-integer variables and a nonlinear fractional function. The numerical results demonstrate an improved sum rate by the proposed scheme over a scenario without relay.",

keywords = "amplifyand-forward relay, physical layer security, secure multicarrier communication, secure sum rate",

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AB - In this letter, we consider an amplify-and-forward-relay-aided secure multicarrier communication between two nodes with an eavesdropper. We solve the sum secrecy rate maximization problem by solving the following two problems: 1) subcarrier usage policy at the source and the relay; and 2) power allocation among subcarriers between the source and the relay under a total system power constraint. We provide a suboptimal closed-form solution to the problem that involves mixed-integer variables and a nonlinear fractional function. The numerical results demonstrate an improved sum rate by the proposed scheme over a scenario without relay.

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KW - secure sum rate

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ER -

Resource allocation for secure multicarrier AF relay system under total power constraint

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Keywords

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