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Physical-layer secret key generation via CQI-mapped spatial modulation in multi-hop wiretap ad-hoc networks

Physical-layer secret key generation via CQI-mapped spatial modulation in multi-hop wiretap ad-hoc networks
Physical-layer secret key generation via CQI-mapped spatial modulation in multi-hop wiretap ad-hoc networks
Providing security guarantee is a critical concern in the ad-hoc networks relying on multi-hop channels, since their flexible topology is vulnerable to security attacks. To enhance the security of a spatial modulation (SM) assisted wireless network, various SM mapping patterns are activated by random channel quality indicator (CQI) patterns over the legitimate link, as a physical-layer secret key. The SM signals are encrypted by random mapping patterns to prevent eavesdroppers from correctly demapping their detections. This secret key is developed for multi-hop wiretap ad-hoc networks, where eavesdroppers might monitor all the transmitting nodes of a legitimate link. We substantially characterise the multi-hop wiretap model with receiver diversity techniques adopted by eavesdroppers. The security performance of the conceived scheme is evaluated in the scenarios where eavesdroppers attempt to detect their received signals using maximal-ratio combining or maximum-gain selection. The achievable data rates of both legitimate and wiretapper links are formulated with the objective of quantifying the secrecy rates for both Gaussian-distributed and finite-alphabet inputs. Illustrative numerical results are provided for the metrics of ergodic secrecy rate and secrecy outage probability, which substantiate the compelling benefits of the physical-layer secret key generation via CQI-mapped SM
Ad-hoc networks, channel quality indicator (CQI), multi-hop, multiple-input-multiple-output (MIMO) wiretap channel, physical layer security (PLS), secrecy rate, spatial modulation (SM)
1556-6013
1322-1334
Yang, Yuli
b7c4539f-dd16-4156-91f8-7f11e93b43e1
Ma, Meng
674282d9-695d-453a-800e-395f35cac980
Aissa, Sonia
5433416b-76b3-4945-8949-b8e0a335349f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Yang, Yuli
b7c4539f-dd16-4156-91f8-7f11e93b43e1
Ma, Meng
674282d9-695d-453a-800e-395f35cac980
Aissa, Sonia
5433416b-76b3-4945-8949-b8e0a335349f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Yang, Yuli, Ma, Meng, Aissa, Sonia and Hanzo, Lajos (2020) Physical-layer secret key generation via CQI-mapped spatial modulation in multi-hop wiretap ad-hoc networks. IEEE Transactions on Information Forensics and Security, 16, 1322-1334, [9229387]. (doi:10.1109/TIFS.2020.3032276).

Record type: Article

Abstract

Providing security guarantee is a critical concern in the ad-hoc networks relying on multi-hop channels, since their flexible topology is vulnerable to security attacks. To enhance the security of a spatial modulation (SM) assisted wireless network, various SM mapping patterns are activated by random channel quality indicator (CQI) patterns over the legitimate link, as a physical-layer secret key. The SM signals are encrypted by random mapping patterns to prevent eavesdroppers from correctly demapping their detections. This secret key is developed for multi-hop wiretap ad-hoc networks, where eavesdroppers might monitor all the transmitting nodes of a legitimate link. We substantially characterise the multi-hop wiretap model with receiver diversity techniques adopted by eavesdroppers. The security performance of the conceived scheme is evaluated in the scenarios where eavesdroppers attempt to detect their received signals using maximal-ratio combining or maximum-gain selection. The achievable data rates of both legitimate and wiretapper links are formulated with the objective of quantifying the secrecy rates for both Gaussian-distributed and finite-alphabet inputs. Illustrative numerical results are provided for the metrics of ergodic secrecy rate and secrecy outage probability, which substantiate the compelling benefits of the physical-layer secret key generation via CQI-mapped SM

Text
Physical-Layer Secret Key Generation via CQI-Mapped Spatial Modulation in Multi-Hop Wiretap Ad-Hoc Networks - Accepted Manuscript
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More information

Accepted/In Press date: 10 October 2020
e-pub ahead of print date: 19 October 2020
Keywords: Ad-hoc networks, channel quality indicator (CQI), multi-hop, multiple-input-multiple-output (MIMO) wiretap channel, physical layer security (PLS), secrecy rate, spatial modulation (SM)

Identifiers

Local EPrints ID: 452149
URI: http://eprints.soton.ac.uk/id/eprint/452149
ISSN: 1556-6013
PURE UUID: cebb0aab-1d8f-4ba2-9074-9b31369d1cdc
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 25 Nov 2021 21:39
Last modified: 26 Nov 2021 02:34

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Contributors

Author: Yuli Yang
Author: Meng Ma
Author: Sonia Aissa
Author: Lajos Hanzo ORCID iD

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