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IEEE International Conference on Quantum Photonics, Artificial Intelligence & Networking (QPAIN)

Secrecy Performance of Multicasting Networks Over Nakagami-0.5 Fading Channels Employing MRC Diversity

Abdullah Al-Faruk, Sadia Tanzim Islam, Md. Shadman Rafid Khan, Md. Arifuzzaman, Md. Rokonuzzaman Mim, Partho Kumer Nonda

Published Apr 16, 2026• 0 citations
Publisher

Abstract

This paper investigates the role of the Maximum Ratio Combining (MRC) diversity scheme in enhancing security for multicast communications over a Nakagami-0.5 fading channel in the presence of multiple eavesdroppers. The considered scenario involves a singleantenna transmitter communicating confidentially with multiple legitimate receivers, while multiple eavesdroppers attempt to intercept the transmission. Explicit mathematical formulation have been established to evaluate the likelihood of achieving a positive secrecy multicast capacity and the probability of a secure outage, providing a theoretical framework to evaluate the secrecy performance. The analysis highlights the impact of critical system parameters, including the number of legitimate receivers, the number of eavesdroppers and the number of antennas employed at both legitimate receivers and eavesdroppers. By employing MRC, which coherently combines signals from multiple antennas to maximize the received signal-to-noise ratio, the study demonstrates significant improvements in the secrecy performance of multicast systems. The findings contribute valuable insights into designing more secure multicast communication networks in the presence of severe fading and adversarial interception.

DOI
10.1109/qpain69676.2026.11546631

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This paper investigates the role of the Maximum Ratio Combining (MRC) diversity scheme in enhancing security for multicast communications over a Nakagami-0.5 fading channel in the presence of multiple eavesdroppers. The considered scenario involves a singleantenna transmitter communicating confidentially with multiple legitimate receivers, while multiple eavesdroppers attempt to intercept the transmission. Explicit mathematical formulation have been established to evaluate the likelihood of achieving a positive secrecy multicast capacity and the probability of a secure outage, providing a theoretical framework to evaluate the secrecy performance. The analysis highlights the impact of critical system parameters, including the number of legitimate receivers, the number of eavesdroppers and the number of antennas employed at both legitimate receivers and eavesdroppers. By employing MRC, which coherently combines signals from multiple antennas to maximize the received signal-to-noise ratio, the study demonstrates significant improvements in the secrecy performance of multicast systems. The findings contribute valuable insights into designing more secure multicast communication networks in the presence of severe fading and adversarial interception.
The effect of Selection Combining scheme is focusing on the enhancing security in multicasting over Nakagami 0.5 fading channel in the presence of multiple eavesdroppers. The study explores a scenario where a single-antenna transmitter communicates with multiple destinations and multiple eavesdroppers are trying to decode that confidential information. The closed-form analytical expressions are derived for the probability of non-zero secrecy multicast capacity and the secure outage probability for multicasting. These expressions shed light on the impact of key system parameters, such as the number of receivers, the number of eavesdroppers and the number of antennas at the receiver and eavesdropper. In order to enhance the communication security, the study employs linear diversity combining schemes such as Selection Combining, Maximal Ratio Combining and Equal Gain Combining diversity schemes. By leveraging these advanced techniques, the research contributes valuable insights to enhance the security of multicast communications systems employing the benefits of aforementioned diversity combining schemes with Nakagami 0.5 fading channel.
This paper presents a method of increasing the secrecy capactty utilizing the channel diversity technique in wireless communication. In general, a relatively higher secrecy capactty can be achieved at the intended receiver by deploying channel diversity to mitigate the effect of low signal to noise ratio. In this analysis, the legitimate receiver and the eavesdropper are assumed to employ maximal ratio combining diversity technique to combine the received signals coming from the transmitter. Considering Nakagami-m wireless fading channels, dosed-form expressions for the secrecy outage probability and the probability of secrecy capacity are derived, which can be used as quality of service metrics. The numerical result confirms that the security of any wireless network model or communication system at a common operating system can be improved by using maximal ratio combining diversity technique as expected.
This paper presents a study on secure wireless multicasting using a Neyman-Pearson receiver in conjunction with the maximal ratio combining (MRC) diversity technique and opportunistic relaying. The MRC diversity technique effectively mitigates the impact of fading, while opportunistic relaying enhances cooperative communication by selecting the relay with the highest signal-to-noise ratio (SNR). The authors aim to safeguard the transmitted signal from eavesdropping, considering factors such as the number of relays, the number of receive and eavesdropper-side antennas, the number of multicast users, and the number of eavesdroppers. In this context, closed-form analytical expressions are derived for the probability of nonzero secrecy multicast capacity (PNSMC) and the secure outage probability for multicasting (SOPM) to ensure secrecy in the presence of multiple eavesdroppers. These mathematical models shed essential light on how the previously listed parameters affect things. Numerical results demonstrate that the security of the multicast network employing the Neyman-Pearson receiver, MRC diversity, and opportunistic relaying is significantly influenced by the number of relays, antennas on both the receiver and eavesdropper sides, multicast users, and eavesdroppers, particularly in low noise power regions of the eavesdropper channel.
This Paper presents a comprehensive analysis of secrecy performance in a multicast wireless communication network operating over Nakagami- 0.5 fading channels. The Probability of non-zero secrecy multicast capacity (PNSMC) and the secure outage probability for multicasting (SOPM) are analytically developed under the influence of multiple relays, legitimate users, and eavesdroppers. To ensure enhanced secrecy reliability, an opportunistic relay selection approach is integrated with selection combining (SC) diversity at the destination. Verified the analytical results through extensive Monte Carlo simulations, exhibiting a strong correspondence with theoretical predictions. Numerical evaluations indicate that an increased number of relays and destination antennas notably strengthen secrecy performance, whereas stronger eavesdropper channels deteriorate it. In general, the framework presented provides useful design guidelines for cooperative secure multicast communication systems operating in severe fading environments.
This paper focuses on a secure wireless multicas-ting under the employment of generalized receiver along with maximal ratio combining (MRC) diversity technique. MRC diversity technique mitigate the fading effect significantly and the generalized receiver is flexible to adaptive signal processing. In this paper, the transmitted signal has been protected from eavesdropping considering the effect of receive side antenna number, eavesdropper side antenna number, multicast user number and eavesdropper number. In this manner the authors derived the closed form analytical expression for the probability of non-zero secrecy capacity of multicast system (PNSMC) and for the secure outage probability of multicast system (SOPM) to ensure the secrecy in the presence of multiple eavesdroppers. These mathematical models are helpful to realize the insight of the effects of aforementioned parameters. The numerical results show that, security in multicast network employing generalized receiver with MRC diversity technique is significantly affected by the number of receive antenna, eavesdropper antenna, multicast user and eavesdropper, specially at low noise power region of eavesdropper.
This paper focuses on the secure wireless multicasting under the employment of Neyman-Pearson receiver with maximal ratio combining (MRC) diversity technique. MRC diversity technique mitigate the fading effect significantly. The authors set the goal for the protection of the transmitted signal from wire-trapper considering the effects of the number of multicast users, number of eavesdropper, quantity of the antenna at the receiver and quantity of the antenna at the eavesdropper end. Authors derived the closed form analytical expressions for probability of non-zero secrecy multicast capacity (PNSMC) and the secure outage probability for multicasting (SOPM) to ensure security in the presence of multiple eavesdroppers. These mathematical models are useful for the realization of the effects of aforementioned parameters. The numerical results show that, the security in multicasting employing Neyman-Pearson receiver with MRC diversity technique is significantly affected by the number of multicast users, eavesdroppers and the antennas at the multicast users and eavesdroppers specially at low noise power region of eavesdropper channel.