Secrecy outage probability and diversity order of Alamouti STBC over time-selective fading channels

This paper studies physical layer security for Alamouti space–time block code (STBC) with joint maximum likelihood (JML) or zero forcing (ZF) detection techniques particularly over multi-input single-output (MISO) wiretap time-selective Rayleigh fading channels. Specifically, we derive the secrecy o...

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Main Authors: Seong Ho Chae, Hoojin Lee
Format: Article
Language:English
Published: Elsevier 2023-08-01
Series:ICT Express
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405959523000139
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author Seong Ho Chae
Hoojin Lee
author_facet Seong Ho Chae
Hoojin Lee
author_sort Seong Ho Chae
collection DOAJ
description This paper studies physical layer security for Alamouti space–time block code (STBC) with joint maximum likelihood (JML) or zero forcing (ZF) detection techniques particularly over multi-input single-output (MISO) wiretap time-selective Rayleigh fading channels. Specifically, we derive the secrecy outage probabilities (SOPs) and their concise but effective approximations for various combinations of JML and ZF at the legitimate receiver and eavesdropper. We also investigate the secrecy diversity gain by applying the high signal-to-noise ratio (SNR) approximation of SOP and prove that the corresponding asymptotic diversity order of two, two, one, and one can be achieved for JML-JML, JML-ZF, ZF-JML, and ZF-ZF, respectively. Our asymptotic analytical results corroborate that the secrecy diversity order is dominantly affected by the detection strategy of the legitimate receiver rather than that of the eavesdropper.
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spelling doaj.art-68894025d16847e9b2942d29ff5b14b02023-08-25T04:24:27ZengElsevierICT Express2405-95952023-08-0194714721Secrecy outage probability and diversity order of Alamouti STBC over time-selective fading channelsSeong Ho Chae0Hoojin Lee1Department of Electronics Engineering, Tech University of Korea, Siheung, 15073, Republic of KoreaDepartment of Convergence Security, Hansung University, Seoul, 02876, Republic of Korea; Corresponding author.This paper studies physical layer security for Alamouti space–time block code (STBC) with joint maximum likelihood (JML) or zero forcing (ZF) detection techniques particularly over multi-input single-output (MISO) wiretap time-selective Rayleigh fading channels. Specifically, we derive the secrecy outage probabilities (SOPs) and their concise but effective approximations for various combinations of JML and ZF at the legitimate receiver and eavesdropper. We also investigate the secrecy diversity gain by applying the high signal-to-noise ratio (SNR) approximation of SOP and prove that the corresponding asymptotic diversity order of two, two, one, and one can be achieved for JML-JML, JML-ZF, ZF-JML, and ZF-ZF, respectively. Our asymptotic analytical results corroborate that the secrecy diversity order is dominantly affected by the detection strategy of the legitimate receiver rather than that of the eavesdropper.http://www.sciencedirect.com/science/article/pii/S2405959523000139Physical layer securityAlamouti space–time block codeTime-selective fadingSecrecy diversity orderSecrecy outage probability
spellingShingle Seong Ho Chae
Hoojin Lee
Secrecy outage probability and diversity order of Alamouti STBC over time-selective fading channels
ICT Express
Physical layer security
Alamouti space–time block code
Time-selective fading
Secrecy diversity order
Secrecy outage probability
title Secrecy outage probability and diversity order of Alamouti STBC over time-selective fading channels
title_full Secrecy outage probability and diversity order of Alamouti STBC over time-selective fading channels
title_fullStr Secrecy outage probability and diversity order of Alamouti STBC over time-selective fading channels
title_full_unstemmed Secrecy outage probability and diversity order of Alamouti STBC over time-selective fading channels
title_short Secrecy outage probability and diversity order of Alamouti STBC over time-selective fading channels
title_sort secrecy outage probability and diversity order of alamouti stbc over time selective fading channels
topic Physical layer security
Alamouti space–time block code
Time-selective fading
Secrecy diversity order
Secrecy outage probability
url http://www.sciencedirect.com/science/article/pii/S2405959523000139
work_keys_str_mv AT seonghochae secrecyoutageprobabilityanddiversityorderofalamoutistbcovertimeselectivefadingchannels
AT hoojinlee secrecyoutageprobabilityanddiversityorderofalamoutistbcovertimeselectivefadingchannels