Enhancing Security of TAS/MRC Based Mixed RF-UOWC System with Induced Underwater Turbulence Effect

Ibrahim, Md. Najib; Badrudduza, A. S. M.; Hossen, Md. Shakhawat; Ansari, Imran Shafique

doi:10.48550/arxiv.2105.09088

Cited by 2 publications

(2 citation statements)

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“…Considering scenario-1 wherein eavesdropper E 1 is located near the S − R link, SPSC can be expressed as [72,73]…”

Section: B1 Scenario-1mentioning

confidence: 99%

Effects of Eavesdropper on the Performance of Mixed η-μ and DGG Cooperative Relaying System

Sarker¹,

Badrudduza²,

Ansari³

2021

Preprint

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Free-space optical (FSO) channel offers line-of-sight wireless communication with high data rates and high secrecy utilizing unlicensed optical spectrum and also paves the way to the solution of the last-mile access problem. Since atmospheric turbulence is a hindrance to an enhanced secrecy performance, the mixed radio frequency (RF)-FSO system is gaining enormous research interest in recent days. But conventional FSO models except for the double generalized Gamma (DGG) model can not demonstrate secrecy performance for all ranges of turbulence severity. This reason has led us to propose a dual-hop η − µ and unified DGG mixed RF-FSO network while considering eavesdropping at both RF and FSO hops. The security of these proposed scenarios is investigated in terms of two metrics, i.e., strictly positive secrecy capacity and secure outage probability. Exploiting these expressions, we further investigate how the secrecy performance is affected by various system parameters, i.e., fading, turbulence, and pointing errors. A demonstration is made between heterodyne detection (HD) and intensity modulation/direct detection (IM/DD) techniques while exhibiting superior secrecy performance for HD technique over IM/DD technique. Finally, all analytical results are corroborated via Monte-Carlo simulations.

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“…Considering scenario-1 wherein eavesdropper E 1 is located near the S − R link, SPSC can be expressed as [72,73]…”

Section: B1 Scenario-1mentioning

confidence: 99%

Effects of Eavesdropper on the Performance of Mixed η-μ and DGG Cooperative Relaying System

Sarker¹,

Badrudduza²,

Ansari³

2021

Preprint

Self Cite

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“…As known, PLS can secure information by exploiting the randomness of the wireless channel [21]. Generalized fading channels and their variants are therefore also being considered in the analysis of PLS of wireless systems and different PLS performance metrics such as secure outage probability (SOP), average secrecy capacity (ASC), and strictly positive secrecy capacity (SPSC) are evaluated [22]- [25].…”

Section: A Literature Surveymentioning

confidence: 99%

Opportunistic Relay Selection over Generalized Fading and Inverse Gamma Composite Fading Mixed Multicast Channels: A Secrecy Tradeoff

Hossen¹,

Badrudduza²,

Islam³

et al. 2021

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The secrecy performance of realistic wireless multicast scenarios can be significantly deteriorated by the simultaneous occurrence of multipath and shadowing. To resolve this security threat, in this work an opportunistic relaying-based dual-hop wireless multicast framework is proposed in which the source dispatches confidential information to a bunch of receivers via intermediate relays under the wiretapping attempts of multiple eavesdroppers. Two scenarios, i.e. non-line of sight (NLOS) and line of sight (LOS) communications along with the multiplicative and LOS shadowing are considered where the first scenario assumes η − µ and η − µ/inverse Gamma (IG) composite fading channels and the latter one follows κ − µ and κ − µ/IG composite fading channels as the source to relay and relay to receiver's as well as eavesdropper's links, respectively. Secrecy analysis is accomplished by deriving closed-form expressions of three familiar secrecy measures i.e. secure outage probability for multicasting, probability of non-zero secrecy multicast capacity, and ergodic secrecy multicast capacity. We further capitalize on those expressions to observe the effects of all system parameters which are again corroborated via Monte-Carlo simulations.Our observations indicate that a secrecy tradeoff between the number of relays and number of receivers, eavesdroppers, and shadowing parameters can be established to maintain the admissible security level by decreasing the detrimental influences of fading, shadowing, the number of multicast receivers and eavesdroppers.

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Enhancing Security of TAS/MRC Based Mixed RF-UOWC System with Induced Underwater Turbulence Effect

Cited by 2 publications

References 0 publications

Effects of Eavesdropper on the Performance of Mixed η-μ and DGG Cooperative Relaying System

Effects of Eavesdropper on the Performance of Mixed η-μ and DGG Cooperative Relaying System

Opportunistic Relay Selection over Generalized Fading and Inverse Gamma Composite Fading Mixed Multicast Channels: A Secrecy Tradeoff

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