Browsing NTNU Open by Author "Kong, Long"
Now showing items 1-10 of 10
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Comprehensive Physical Layer Security Analysis of FSO Communications over Málaga Channels
Ai, Yun; Mathur, Aashish; Verma, Gyan Deep; Kong, Long; Cheffena, Michael (Peer reviewed; Journal article, 2020)In this paper, we study the physical layer security of free-space optical (FSO) communications under different eavesdropping scenarios. More specifically, the secrecy performance of FSO communication employing intensity ... -
Effective Rate Evaluation of RIS-Assisted Communications Using the Sums of Cascaded α-μ Random Variates
Kong, Long; Ai, Yun; Symeon, Chatzinotas; Björn, Ottersten (Peer reviewed; Journal article, 2021)This paper begins with the characterization of the sum of M versions of cascaded α-μ (equivalently, N*(α-μ)) distributed random variates (RVs), and later on, explores the feasibility and applicability of the obtained results ... -
Effective Rate Evaluation with Assistance of Mixture Gamma (MG), Mixture of Gaussian (MoG), and Fox's H-Function Distributions
Kong, Long; He, Jiguang; Ai, Yun; Chatzinotas, Symeon; Ottersten, Björn (Chapter, 2021)This paper investigates the effective rate when the instantaneous received signal-to-noise ratio (SNR) could be modeled as the mixture Gamma (MG), mixture of Gaussian (MoG), and Fox’s H-function distributed random variable ... -
Effective Throughput Analysis of α-η-κ-µ Fading Channels
Ai, Yun; Mathur, Aashish; Kong, Long; Cheffena, Michael (Peer reviewed; Journal article, 2020)The α-η-κ-μ fading model is a very useful instrument to accurately describe various radio wave propagation scenarios. In this paper, we study the effective throughput performance of communication systems over the α-η-κ-μ ... -
Intercept Probability Analysis over the Cascaded Fisher-Snedecor ℱ Fading Wiretap Channels
Kong, Long; Ai, Yun; He, Jiguang; Rajatheva, Nandana; Kaddoum, Georges (Chapter, 2019)In this paper, we have investigated the physical layer security over cascaded Fisher-Snedecor ℱ fading channels in the presence of randomly distributed eavesdroppers. To characterize the eavesdroppers’ intercept capability, ... -
On Hybrid-ARQ-Based Intelligent Reflecting Surface-Assisted Communication System
Ai, Yun; Mohamed, Marshed Kassim; Kong, Long; Al-Samman, Ahmed; Cheffena, Michael (Peer reviewed; Journal article, 2021)The intelligent reflecting surface (IRS) is an emerging technique to extend the wireless coverage. In this letter, the performance of hybrid automatic repeat request (hybrid-ARQ) for an IRS-assisted system is analyzed. ... -
An overview of generic tools for information-theoretic secrecy performance analysis over wiretap fading channels
Kong, Long; Ai, Yun; Lei, Lei; Kaddoum, Georges; Chatzinotas, Symeon; Ottersten, Björn (Peer reviewed; Journal article, 2021)Physical layer security (PLS) has been proposed to afford an extra layer of security on top of the conventional cryptographic techniques. Unlike the conventional complexity-based cryptographic techniques at the upper layers, ... -
Secrecy outage analysis of double shadowed Rician channels
Ai, Yun; Kong, Long; Cheffena, Michael (Journal article; Peer reviewed, 2019)The double shadowed Rician model was recently proposed to describe some realistic physical signal propagation phenomena, where a Rician faded signal is impacted by cascaded shadowing processes. In this letter, we study the ... -
Secure Outage Analysis of FSO Communications Over Arbitrarily Correlated Málaga Turbulence Channels
Ai, Yun; Mathur, Aashish; Kong, Long; Cheffena, Michael (Peer reviewed; Journal article, 2021)In this paper, we analyze the secrecy outage performance for more realistic eavesdropping scenario of free-space optical (FSO) communications, where the main and wiretap links are correlated. The FSO fading channels are ... -
Secure Vehicular Communications through Reconfigurable Intelligent Surfaces
Ai, Yun; Figueiredo, Felipe A. P. De; Kong, Long; Chatzinotas, Symeon; Ottersten, Björn (Journal article; Peer reviewed, 2021)Reconfigurable intelligent surfaces (RIS) is considered as a revolutionary technique to improve the wireless system performance by reconfiguring the radio wave propagation environment artificially. Motivated by the potential ...