Secure full-duplex small-cell networks in a spectrum sharing environment

In this paper, we propose three relay selection schemes for full-duplex heterogeneous networks in the presence of multiple cognitive radio eavesdroppers. In this setup, the cognitive small-cell nodes (secondary network) can share the spectrum licensed to the macro-cell system (primary network) on th...

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Main Authors: Nam-Phong Nguyen, Chinmoy Kundu, Hien Quoc Ngo, Trung Q. Duong, Berk Canberk
Format: Article
Language:English
Published: IEEE 2016-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/7500135/
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author Nam-Phong Nguyen
Chinmoy Kundu
Hien Quoc Ngo
Trung Q. Duong
Berk Canberk
author_facet Nam-Phong Nguyen
Chinmoy Kundu
Hien Quoc Ngo
Trung Q. Duong
Berk Canberk
author_sort Nam-Phong Nguyen
collection DOAJ
description In this paper, we propose three relay selection schemes for full-duplex heterogeneous networks in the presence of multiple cognitive radio eavesdroppers. In this setup, the cognitive small-cell nodes (secondary network) can share the spectrum licensed to the macro-cell system (primary network) on the condition that the quality-of-service of the primary network is always satisfied subjected to its outage probability constraint. The messages are delivered from one small-cell base station to the destination with the help of full-duplex small-cell base stations, which act as relay nodes. Based on the availability of the network's channel state information at the secondary information source, three different selection criteria for full-duplex relays, namely: 1) partial relay selection; 2) optimal relay selection; and 3) minimal self-interference relay selection, are proposed. We derive the exact closed-form and asymptotic expressions of the secrecy outage probability for the three criteria under the attack of non-colluding/colluding eavesdroppers. We demonstrate that the optimal relay selection scheme outperforms the partial relay selection and minimal self-interference relay selection schemes at the expense of acquiring full channel state information knowledge. In addition, increasing the number of the full-duplex small-cell base stations can improve the security performance. At the illegitimate side, deploying colluding eavesdroppers and increasing the number of eavesdroppers put the confidential information at a greater risk. Besides, the transmit power and the desire outage probability of the primary network have great influences on the secrecy outage probability of the secondary network.
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spelling doaj.art-7b28c49f3e7b444b8ac23ec826e1f5ff2022-12-21T22:22:31ZengIEEEIEEE Access2169-35362016-01-0143087309910.1109/ACCESS.2016.25824867500135Secure full-duplex small-cell networks in a spectrum sharing environmentNam-Phong Nguyen0Chinmoy Kundu1Hien Quoc Ngo2Trung Q. Duong3https://orcid.org/0000-0002-4703-4836Berk Canberk4Queen's University Belfast, Belfast, UKQueen's University Belfast, Belfast, UKQueen's University Belfast, Belfast, UKQueen's University Belfast, Belfast, UKIstanbul Technical University, Istanbul, TurkeyIn this paper, we propose three relay selection schemes for full-duplex heterogeneous networks in the presence of multiple cognitive radio eavesdroppers. In this setup, the cognitive small-cell nodes (secondary network) can share the spectrum licensed to the macro-cell system (primary network) on the condition that the quality-of-service of the primary network is always satisfied subjected to its outage probability constraint. The messages are delivered from one small-cell base station to the destination with the help of full-duplex small-cell base stations, which act as relay nodes. Based on the availability of the network's channel state information at the secondary information source, three different selection criteria for full-duplex relays, namely: 1) partial relay selection; 2) optimal relay selection; and 3) minimal self-interference relay selection, are proposed. We derive the exact closed-form and asymptotic expressions of the secrecy outage probability for the three criteria under the attack of non-colluding/colluding eavesdroppers. We demonstrate that the optimal relay selection scheme outperforms the partial relay selection and minimal self-interference relay selection schemes at the expense of acquiring full channel state information knowledge. In addition, increasing the number of the full-duplex small-cell base stations can improve the security performance. At the illegitimate side, deploying colluding eavesdroppers and increasing the number of eavesdroppers put the confidential information at a greater risk. Besides, the transmit power and the desire outage probability of the primary network have great influences on the secrecy outage probability of the secondary network.https://ieeexplore.ieee.org/document/7500135/Physical layer securitycognitive radio networksfull-duplexdecode-and-forwardrelay selectioncolluding eavesdroppers
spellingShingle Nam-Phong Nguyen
Chinmoy Kundu
Hien Quoc Ngo
Trung Q. Duong
Berk Canberk
Secure full-duplex small-cell networks in a spectrum sharing environment
IEEE Access
Physical layer security
cognitive radio networks
full-duplex
decode-and-forward
relay selection
colluding eavesdroppers
title Secure full-duplex small-cell networks in a spectrum sharing environment
title_full Secure full-duplex small-cell networks in a spectrum sharing environment
title_fullStr Secure full-duplex small-cell networks in a spectrum sharing environment
title_full_unstemmed Secure full-duplex small-cell networks in a spectrum sharing environment
title_short Secure full-duplex small-cell networks in a spectrum sharing environment
title_sort secure full duplex small cell networks in a spectrum sharing environment
topic Physical layer security
cognitive radio networks
full-duplex
decode-and-forward
relay selection
colluding eavesdroppers
url https://ieeexplore.ieee.org/document/7500135/
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