Secure relay beamforming over cognitive radio channels

Junwei Zhang; Mustafa Cenk Gursoy

doi:10.1109/CISS.2011.5766188

Secure relay beamforming over cognitive radio channels

Junwei Zhang, Mustafa Cenk Gursoy

Research output: Chapter in Book/Entry/Poem › Conference contribution

15 Scopus citations

Abstract

In this paper, a cognitive relay channel is considered, and amplify-and-forward (AF) relay beamforming designs in the presence of an eavesdropper and a primary user are studied. Our objective is to optimize the performance of the cognitive relay beamforming system while limiting the interference in the direction of the primary receiver and keeping the transmitted signal secret from the eavesdropper. We show that under both total and individual power constraints, the problem becomes a quasiconvex optimization problem which can be solved by interior point methods. We also propose two sub-optimal null space beamforming schemes which are obtained in a more computationally efficient way.

Original language	English (US)
Title of host publication	2011 45th Annual Conference on Information Sciences and Systems, CISS 2011
DOIs	https://doi.org/10.1109/CISS.2011.5766188
State	Published - 2011
Externally published	Yes
Event	2011 45th Annual Conference on Information Sciences and Systems, CISS 2011 - Baltimore, MD, United States Duration: Mar 23 2011 → Mar 25 2011

Publication series

Name	2011 45th Annual Conference on Information Sciences and Systems, CISS 2011

Other

Other	2011 45th Annual Conference on Information Sciences and Systems, CISS 2011
Country/Territory	United States
City	Baltimore, MD
Period	3/23/11 → 3/25/11

Keywords

Amplify-and-forward relaying
cognitive radio
physical-layer security
relay beamforming

ASJC Scopus subject areas

Information Systems

Access to Document

10.1109/CISS.2011.5766188

Cite this

Zhang, J & Gursoy, MC 2011, Secure relay beamforming over cognitive radio channels. in 2011 45th Annual Conference on Information Sciences and Systems, CISS 2011., 5766188, 2011 45th Annual Conference on Information Sciences and Systems, CISS 2011, 2011 45th Annual Conference on Information Sciences and Systems, CISS 2011, Baltimore, MD, United States, 3/23/11. https://doi.org/10.1109/CISS.2011.5766188

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title = "Secure relay beamforming over cognitive radio channels",

abstract = "In this paper, a cognitive relay channel is considered, and amplify-and-forward (AF) relay beamforming designs in the presence of an eavesdropper and a primary user are studied. Our objective is to optimize the performance of the cognitive relay beamforming system while limiting the interference in the direction of the primary receiver and keeping the transmitted signal secret from the eavesdropper. We show that under both total and individual power constraints, the problem becomes a quasiconvex optimization problem which can be solved by interior point methods. We also propose two sub-optimal null space beamforming schemes which are obtained in a more computationally efficient way.",

keywords = "Amplify-and-forward relaying, cognitive radio, physical-layer security, relay beamforming",

author = "Junwei Zhang and Gursoy, {Mustafa Cenk}",

year = "2011",

doi = "10.1109/CISS.2011.5766188",

language = "English (US)",

isbn = "9781424498475",

series = "2011 45th Annual Conference on Information Sciences and Systems, CISS 2011",

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AB - In this paper, a cognitive relay channel is considered, and amplify-and-forward (AF) relay beamforming designs in the presence of an eavesdropper and a primary user are studied. Our objective is to optimize the performance of the cognitive relay beamforming system while limiting the interference in the direction of the primary receiver and keeping the transmitted signal secret from the eavesdropper. We show that under both total and individual power constraints, the problem becomes a quasiconvex optimization problem which can be solved by interior point methods. We also propose two sub-optimal null space beamforming schemes which are obtained in a more computationally efficient way.

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KW - physical-layer security

KW - relay beamforming

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M3 - Conference contribution

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T3 - 2011 45th Annual Conference on Information Sciences and Systems, CISS 2011

BT - 2011 45th Annual Conference on Information Sciences and Systems, CISS 2011

T2 - 2011 45th Annual Conference on Information Sciences and Systems, CISS 2011

Y2 - 23 March 2011 through 25 March 2011

ER -

Secure relay beamforming over cognitive radio channels

Abstract

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Keywords

ASJC Scopus subject areas

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