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IEEE Region 10 Symposium (TENSYMP)

Secrecy Performance Analysis over Inverse Gamma Composite Multicast Fading Channels

Abdulkarim Al Hanif, A. S. M. Badrudduza, Md. Shakhawat Hossen, Milton Kumar Kundu, M. Z. I. Sarkar

Published Jan 1, 2020• 6 citations
Publisher

Abstract

Secrecy performance of realistic wireless multicast scenarios are significantly deteriorated by simultaneous occurrence of multipath and shadowing which are modeled using composite fading channels. To resolve this security threat, in this paper a framework is proposed where a source transmits private multicast messages to multiple receivers over η - μ / inverse gamma composite fading channels. A group of eavesdroppers are trying to overhear this secret communication. Perfect secrecy is obtained if eavesdropper can not decode any information from the multicast links. Secrecy analysis is carried out deriving closed-form expressions of two well-known secrecy measures i.e. probability of non-zero secrecy capacity and secure outage probability for multicasting. The impacts of multipath, shadowing and other system parameters on the outage performance of the proposed scenario are quantified using the derived expressions. A generic nature of η - μ / inverse gamma distribution is obtained by showing Rayleigh, Nakagami-m, Nakagami-q, η - μ fading and Gaussian channels as a special case of this distribution. Finally, Monte-Carlo simulations are presented to verify the derived expressions.

DOI
10.1109/tensymp50017.2020.9230592

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Secrecy performance of realistic wireless multicast scenarios are significantly deteriorated by simultaneous occurrence of multipath and shadowing which are modeled using composite fading channels. To resolve this security threat, in this paper a framework is proposed where a source transmits private multicast messages to multiple receivers over η - μ / inverse gamma composite fading channels. A group of eavesdroppers are trying to overhear this secret communication. Perfect secrecy is obtained if eavesdropper can not decode any information from the multicast links. Secrecy analysis is carried out deriving closed-form expressions of two well-known secrecy measures i.e. probability of non-zero secrecy capacity and secure outage probability for multicasting. The impacts of multipath, shadowing and other system parameters on the outage performance of the proposed scenario are quantified using the derived expressions. A generic nature of η - μ / inverse gamma distribution is obtained by showing Rayleigh, Nakagami-m, Nakagami-q, η - μ fading and Gaussian channels as a special case of this distribution. Finally, Monte-Carlo simulations are presented to verify the derived expressions.
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.
The confidentiality of wireless multicast network is notably compromised by the concurrent existence of shadowing and fading. To overcome this security threat, mathematical modeling of a multicast scenario is proposed in this paper over κ-μ/ inverse gamma (IG) composite fading channel where transmitted confidential information from source is under malicious attack of multiple eavesdroppers. The well-known physical layer security approach is adopted to analyze the impact of system parameters on secrecy performance in terms of novel expressions of secure outage probability for multicasting, probability of nonzero secrecy multicast capacity and ergodic secrecy multicast capacity. The generalization of security analysis is achieved by demonstrating Rayleigh, Rician, Nakagami-m, κ-μ fading and Gaussian channels as a special scenarios of κ-μ/IG distribution. At the end, analytical results are justified by performing Monte-Carlo Simulations.
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 eta-mu and eta-mu/inverse Gamma (IG) composite fading channels and the latter one follows kappa-mu and kappa-mu/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.
The importance of secrecy performance in multicast wireless networks has become paramount as 6 G networks are driving a surge in demand for secure and efficient communication across various applications. To address this challenge, this paper introduces a novel multicast network based on composite Nakagami-Gamma distribution channels, which effectively captures both small- and large-scale fading. Assume that multiple eavesdroppers are attempting to intercept confidential information from the source. To assess secrecy performnce, the analytical expressions for secrecy outage probability for multicasting, probability of non-zero secrecy multicast capacity, and effective secrecy throughput for multicasting are derived in terms of Meijer’s G\mathbf{G}G function. Numerical results demonstrate that despite the detrimental effect of multiple receivers on secrecy performance, the proposed model can be secured by reducing the severity of fading in the main channel link. Finally, Monte Carlo simulations are employed to verify the accuracy of the analytical results.
In this paper, a secure wireless multicast network over k - μ fading channel is considered, where a source transmits secret information to a group of receivers. A group of eavesdroppers are also present in the network which are responsible for wiretapping the transmitted information. A perfect secrecy can be obtained if the eavesdroppers are not able to decode any information from the source. In order to investigate the secrecy capacity of the multicast network, at first a novel expression for Ergodic secrecy multicast capacity is derived in closed-form. The outage performance of the proposed network is analyzed obtaining the closed-form expressions of secure outage probability for multicasting. The effects of fading is determined and a beneficent insight is provided into investigating the secrecy performance of some other common fading scenarios such as Rician, Rayleigh, Nakagami-m, Gaussian etc. using the derived novel expressions of this paper. Monte-Carlo simulations are performed to validate the derived analytical expressions.
In a multiple antenna network, correlation among the antennas tends to reduce the system capacity. In this paper, the effect of correlation on the secrecy performance over η - μ fading channel has been analyzed considering a multicast network in the presence of multiple eavesdroppers. Simple closed-form analytical expressions of the ergodic secrecy multicast capacity and the secure outage probability for multicasting are derived to numerically quantify the effect of correlation. The consequence of changing the number of receiving antennas on correlation has been observed and the secrecy performance of some commonly used channels like Gaussian channel, Rayleigh and Nakagami- m fading channels which can be found as a special case of the η - μ fading channel, have also been investigated. The derived expressions are finally verified through Monte-Carlo simulations.