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In this article, we provide further asymptotic analysis to the higher-order statistics (HOS) of the channel capacity over generalized fading channels, especially by proposing simple and closed-form expressions each of which can be easily…

Information Theory · Computer Science 2019-10-18 Ferkan Yilmaz

In this paper, we investigate the performance of the dual-hop free space optical (FSO) communication systems under the effect of strong atmospheric turbulence together with misalignment effects (pointing error). We consider a relay assisted…

Information Theory · Computer Science 2017-09-19 Neha Mishra , D. Sriram Kumar , Pranav Kumar Jha

This paper focuses on quantifying the outage performance of terahertz (THz) relaying systems. In this direction, novel closed-form expressions for the outage probability of a dual-hop relaying system, in which both the source-relay and…

Signal Processing · Electrical Eng. & Systems 2020-07-15 Alexandros-Apostolos A. Boulogeorgos , Angeliki Alexiou

This paper investigates point-to-point information transmission over a wideband slow-fading channel, modeled as an (asymptotically) large number of independent identically distributed parallel channels, with the random channel fading…

Information Theory · Computer Science 2007-11-29 Wenyi Zhang , Urbashi Mitra

This paper investigates point-to-point information transmission over a wideband slow-fading channel, modeled as an (asymptotically) large number of independent identically distributed parallel channels, with the random channel fading…

Information Theory · Computer Science 2007-10-02 Wenyi Zhang , Urbashi Mitra

Social awareness and social ties are becoming increasingly fashionable with emerging mobile and handheld devices. Social trust degree describing the strength of the social ties has drawn lots of research interests in many fields including…

Information Theory · Computer Science 2017-12-27 Yiming Xu , Hui-Ming Wang , Qian Yang , Ke-Wen Huang , Tong-Xing Zheng

In this paper, we investigate the impact of side information (SI) on the performance of physical layer security (PLS) under correlated fading channels. By considering non-causally known SI at the transmitter and exploiting the copula…

Information Theory · Computer Science 2022-08-23 Farshad Rostami Ghadi , F. Javier Lopez-Martinez , Wei-Ping Zhu , Jean-Marie Gorce

Securing information in future mobile networks is challenging, especially for devices with limited computational resources. Physical layer security (PLS) offers a viable solution by leveraging wireless channel randomness. When full secrecy…

Signal Processing · Electrical Eng. & Systems 2025-10-16 Henry Carvajal Mora , Nathaly Orozco , Fernando Almeida García , José Vega-Sánchez , Felipe Grijalva , Edgar Benitez Olivo

We present two alternative formulations for the distribution of the fluctuating two-ray (FTR) fading model, which simplify its statistical characterization and subsequent use for performance evaluation. New expressions for the probability…

Information Theory · Computer Science 2024-10-28 Maryam Olyaee , Juan M. Romero-Jerez , F. Javier Lopez-Martinez , Andrea J. Goldsmith

The broadcast channel with confidential messages is a well studied scenario from the theoretical standpoint, but there is still lack of practical schemes able to achieve some fixed level of reliability and security over such a channel. In…

Information Theory · Computer Science 2016-11-17 Marco Baldi , Nicola Maturo , Giacomo Ricciutelli , Franco Chiaraluce

In this work, the product of two independent and non-identically distributed (i.n.i.d) $\kappa - \mu $ shadowed random variables is studied. We derive the series expression for the probability density function (PDF), cumulative distribution…

Information Theory · Computer Science 2022-03-30 Shashank Shekhar , Sheetal Kalyani

In Part I of this two-part paper on confidential communication over wireless channels, we studied the fundamental security limits of quasi-static fading channels from the point of view of outage secrecy capacity with perfect and imperfect…

Information Theory · Computer Science 2007-07-13 Matthieu Bloch , Joao Barros , Miguel R. D. Rodrigues , Steven W. McLaughlin

In this paper, we present the $\alpha$-$\eta$-$\mathcal{F}$ and $\alpha$-$\kappa$-$\mathcal{F}$ composite fading distributions. The two distributions generalize the two well-known composite fading distributions, namely the…

Signal Processing · Electrical Eng. & Systems 2020-05-15 Osamah. S. Badarneh

In this letter, we consider a typical scenario where the transmitter employs different power adaption methods, including the optimal rate and power algorithm, optimal rate adaption, channel inversion and truncated channel inversion, to…

Signal Processing · Electrical Eng. & Systems 2018-11-13 Hui Zhao , Zhedong Liu , Mohamed-Slim Alouini

Providing security guarantees for wireless communication is critically important for today's applications. While previous work in this area has concentrated on radio frequency (RF) channels, providing security guarantees for RF channels is…

Information Theory · Computer Science 2015-03-13 Amine Laourine , Aaron B. Wagner

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…

Information Theory · Computer Science 2021-12-09 MD. Shakhawat Hossen , A. S. M. Badrudduza , S. M. Riazul Islam , Abu Hanif , Milton Kumar Kundu , Kyung-Sup Kwak

This paper proposes a general analytical approach to derive the outage probability of hybrid automatic repeat request with incremental redundancy (HARQ-IR) over correlated fading channels in closed-form. Unlike prior analyses, the…

Information Theory · Computer Science 2022-09-28 Zheng Shi , Shaodan Ma , Guanghua Yang , Kam Weng Tam , Ming-Hua Xia

We introduce a comprehensive statistical characterization of the multipath wireless channel built as a superposition of a number of scattered waves with random phases. We consider an arbitrary number $N$ of specular (dominant) components…

Information Theory · Computer Science 2024-10-30 Juan M. Romero-Jerez , F. Javier Lopez-Martinez , Juan P. Peña-Martin , Ali Abdi

In this paper, we consider an active eavesdropping scenario in a cooperative system consisting of a source, a destination, and an active eavesdropper with multiple decode-and-forward relays. Considering an existing assumption in which an…

Signal Processing · Electrical Eng. & Systems 2018-03-06 Sarbani Ghose , Chinmoy Kundu , Octavia A. Dobre

In this letter, some applications of wireless communication systems over $\alpha-\eta-\kappa-\mu$ fading channels are analysed. More specifically, the effective rate and the average of both the detection probability and area under the…

Information Theory · Computer Science 2019-09-17 Hussien Al-Hmood , H. S. Al-Raweshidy