Enhancing security of TAS/MRC-based mixed RF-UOWC system with induced underwater turbulence effect

Ibrahim, M., Badrudduza, A.S.M., Hossen, M. S., Kundu, M. K. and Ansari, I. S. (2022) Enhancing security of TAS/MRC-based mixed RF-UOWC system with induced underwater turbulence effect. IEEE Systems Journal, 16(4), pp. 5584-5595. (doi: 10.1109/JSYST.2021.3123515)

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Post commercial deployment of fifth-generation (5G) technologies, the consideration of sixth-generation (6G) networks is drawing remarkable attention from research communities. Researchers suggest that similar to 5G, 6G technology must be human-centric where high secrecy together with high data rate will be the key features. These challenges can be easily overcome utilizing PHY security techniques over high-frequency free-space or underwater optical wireless communication (UOWC) technologies. But in long-distance communication, turbulence components drastically affect the optical signals, leading to the invention of the combination of radio-frequency (RF) links with optical links. This article deals with the secrecy performance analysis of a mixed RF-UOWC system where an eavesdropper tries to intercept RF communications. RF and optical links undergo η−μ and mixture exponential generalized Gamma distributions, respectively. To keep pace with the high data rate of the optical technologies, we exploit the antenna selection scheme at the source and maximal ratio combining diversity at the relay and eavesdropper, while the eavesdropper is unaware of the antenna selection scheme. We derive closed-form expressions of average secrecy capacity, secrecy outage probability, and probability of strictly positive secrecy capacity to demonstrate the impacts of the system parameters on the secrecy behavior. Finally, the expressions are corroborated via Monte Carlo simulations.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Ansari, Dr Imran
Authors: Ibrahim, M., Badrudduza, A.S.M., Hossen, M. S., Kundu, M. K., and Ansari, I. S.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:IEEE Systems Journal
ISSN (Online):1937-9234
Published Online:19 November 2021
Copyright Holders:Copyright © 2021 IEEE
First Published:First published in IEEE Systems Journal 16(4): 5584-5595
Publisher Policy:Reproduced under a Creative Commons licence

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
301563Bandwidth and Energy Efficient Compact Multi-Antenna Systems for Connected Autonomous VehiclesPetros KaradimasEngineering and Physical Sciences Research Council (EPSRC)EP/R041660/1ENG - Systems Power & Energy