Copula-Based Analysis of Power Allocation for Two-Sensor Composite Fading MAC With Dependent Channel Coefficients

Mohajeran, Seyed Ali; Hodtani, Ghosheh Abed

doi:10.1109/jsyst.2020.3015250

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…In [15], copula analysis is applied in physical layer security and the several performance metrics such as secrecy outage probability are studied over correlated Rayleigh channel. In [16], power allocation is studied in the wireless MAC with two sensors, and copula theory is applied for denoting the dependency between channel coefficients. In [17]- [20], general bounds based on copulas have been obtained for different performance metrics.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of RIS-Assisted Communication With Direct Link: A New Copula Application

Shahbaztabar,

Trigui,

Zhu

et al. 2024

IEEE Open J. Commun. Soc.

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Reconfigurable intelligent surfaces have received remarkable attention as promising solutions to enhance the capacity and coverage of wireless cellular networks. In this paper, we evaluate the performance of reconfigurable intelligent surfaces-assisted communication systems in the presence of phase noise, and consider a direct link in conjunction with cascade link between the transmitter and receiver by exploring different copulas. In particular, we first analyze the cumulative distribution function and the probability density function of the signal-to-noise-ratio distribution under phase noise in the presence of both direct and cascaded channel links. Moreover, we propose a copula-based solution to effectively model the non-linear dependencies among signal components induced by phase noise, and derive several exact closed-form expressions for outage probability in reconfigurable intelligent surfaces-assisted networks. In our method of analysis, we employ various copula families, including Archimedean copulas such as Farlie-Gumbel-Morgenstern, Frank, and Clayton, along with Elliptical copulas such as Gaussian and Student-T. Finally, numerical results are shown to confirm the validity of the closed-form expressions.INDEX TERMS copula theory, outage probability, reconfigurable intelligent surface (RIS), phase noise, 6G.

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Section: Introductionmentioning

confidence: 99%

Performance Analysis of RIS-Assisted Communication With Direct Link: A New Copula Application

Shahbaztabar,

Trigui,

Zhu

et al. 2024

IEEE Open J. Commun. Soc.

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Calculation of Bounds on the Ergodic Capacity for Fading Channels with Dependency Uncertainty

Besser

Jorswieck

2021

ICC 2021 - IEEE International Conference on Communications

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Modern applications of wireless communication systems often have strict performance requirements. Due to its random nature, channel fading is one of the most limiting factors to provide such guarantees. Even if knowledge about the statistics of the individual links to each antenna is available, there usually are additional uncertainties, e.g., imperfect channel-state information (CSI) or dependency uncertainty between multiple fading links. In this work, we consider the latter and show that a rearrangement algorithm can be applied to calculate the minimum and maximum ergodic capacity for fast fading channels when only the marginal fading distributions are known but the joint distribution is unknown. The algorithm can be used for any number of channels and supports arbitrary marginal distributions. The results are useful for communication system designers, e.g., using the worst-case ergodic capacity for robust system design.

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Physical-Layer Security of RIS-Assisted Networks Over Correlated Fisher-Snedecor F Fading Channels

Pakravan,

Chouinard,

Zeng

et al. 2024

IEEE Internet Things J.

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Copula-Based Analysis of Power Allocation for Two-Sensor Composite Fading MAC With Dependent Channel Coefficients

Cited by 3 publications

References 26 publications

Performance Analysis of RIS-Assisted Communication With Direct Link: A New Copula Application

Performance Analysis of RIS-Assisted Communication With Direct Link: A New Copula Application

Calculation of Bounds on the Ergodic Capacity for Fading Channels with Dependency Uncertainty

Physical-Layer Security of RIS-Assisted Networks Over Correlated Fisher-Snedecor F Fading Channels

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