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We investigate the impact of fading correlation on the performance of the doubly dirty fading multiple access channel (MAC) with non-causally known side information at transmitters. Using Copula theory, we derive closed-form expressions for…

Information Theory · Computer Science 2021-06-23 Farshad Rostami Ghadi , Ghosheh Abed Hodtani , F. Javier Lopez-Martinez

In this paper, we investigate the impact of correlated fading on the performance of wireless multiple access channels (MAC) in the presence and absence of side information (SI) at transmitters, where the fading coefficients are modeled…

Information Theory · Computer Science 2022-05-04 Farshad Rostami Ghadi , Wei-Ping Zhu

Statistically independent or positively correlated fading models are usually applied to compute the average performance of wireless communications. However, there exist scenarios with negative dependency and it is therefore of interest how…

Information Theory · Computer Science 2021-01-12 Eduard A. Jorswieck , Karl-Ludwig Besser

Future wireless communication calls for exploration of more efficient use of wireless channel capacity to meet the increasing demand on higher data rate and less latency. However, while the ergodic capacity and instantaneous capacity of a…

Information Theory · Computer Science 2016-04-06 Fengyou Sun , Yuming Jiang

In this letter, we study the performance of a single-user fluid antenna system (FAS) under arbitrary fading distributions, in which the fading channel coefficients over the ports are correlated. We adopt copula theory to model the structure…

Information Theory · Computer Science 2023-05-17 Farshad Rostami Ghadi , Kai-Kit Wong , F. Javier Lopez-Martinez , Kin-Fai Tong

This paper studies the performance of a wireless powered communication network (WPCN) under the non-orthogonal multiple access (NOMA) scheme, where users take advantage of an emerging fluid antenna system (FAS). More precisely, we consider…

Information Theory · Computer Science 2024-08-12 Farshad Rostami Ghadi , Masoud Kaveh , Kai-Kit Wong , Riku Jantti , Zheng Yan

In the first part of this two-part letter, we introduced methods to study the impact of dependency on the expected value of functions of two random variables. In this second part, we present tools to derive worst- and best-case bounds on…

Information Theory · Computer Science 2021-01-12 Karl-Ludwig Besser , Eduard A. Jorswieck

This paper investigates the problem of activity detection and channel estimation in cooperative multi-cell massive access systems with temporally correlated activity, where all access points (APs) are connected to a central unit via…

Signal Processing · Electrical Eng. & Systems 2023-04-20 Weifeng Zhu , Meixia Tao , Xiaojun Yuan , Fan Xu , Yunfeng Guan

This paper analyzes the efficacy of decoupled wireless access in a two-tier heterogeneous network. The decoupled wireless access and its performance benefits have been studied in different scenarios recently. In this paper, an in-depth…

Signal Processing · Electrical Eng. & Systems 2019-03-18 Zeeshan Sattar , Joao V. C. Evangelista , Georges Kaddoum , Naïm Batani

Gaussian copula has been employed to evaluate the outage performance of Fluid Antenna Systems (FAS), with the covariance matrix reflecting the dependence among multivariate normal random variables (RVs). While prior studies approximate this…

Information Theory · Computer Science 2025-12-02 Rui Xu , Yinghui Ye , Xiaoli Chu , Guangyue Lu , Farshad Rostami Ghadi , Kai-Kit Wong

This letter studies an uplink over-the-air computation (AirComp) framework in which multiple user equipments are equipped with fluid-antenna (FA) arrays and operate over spatially correlated fading channels. By explicitly modeling channel…

Signal Processing · Electrical Eng. & Systems 2026-05-06 Saeid Pakravan , Mohsen Ahmadzadeh , Wessam Ajib , Ghosheh Abed Hodtani , Ming Zeng

This paper investigates the performance of a single-user fluid antenna system (FAS), by exploiting a class of elliptical copulas to describe the dependence structure amongst the fluid antenna positions (ports). By expressing the well-known…

Information Theory · Computer Science 2024-09-04 Farshad Rostami Ghadi , Kai-Kit Wong , F. Javier Lopez-Martinez , Chan-Byoung Chae , Kin-Fai Tong , Yangyang Zhang

In this article, we provide both analytical and numerical performance analysis of multi-service oriented multiple access (MOMA), a recently proposed non-orthogonal multiple-access scheme for scenarios with a massive number of concurrent…

Information Theory · Computer Science 2017-10-31 Nassar Ksairi , Mérouane Debbah

Multiple access technology is a key technology in various generations of wireless communication systems. As a potential multiple access technology for the next generation wireless communication systems, model division multiple access (MDMA)…

Information Theory · Computer Science 2023-11-28 Lei Teng , Wannian An , Chen Dong , Xiaoqi Qin , Xiaodong Xu

Data driven optimization and machine learning based performance diagnostics of radio access networks entails significant challenges arising not only from the nature of underlying data sources but also due to complex spatio-temporal…

Networking and Internet Architecture · Computer Science 2022-09-30 Furqan Ahmed , Muhammad Zeeshan Asghar , Jyri Hämäläinen

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

This paper studies system stability and performance of multi-agent systems in the context of consensus problems over wireless multiple-access channels (MAC). We propose a consensus algorithm that exploits the broadcast property of the…

Systems and Control · Computer Science 2018-04-30 Fabio Molinari , Sławomir Stańczak , Jörg Raisch

This paper dedicates to exploring and exploiting the hidden resource in wireless channel. We discover that the stochastic dependence in wireless channel capacity is a hidden resource, specifically, if the wireless channel capacity bears…

Information Theory · Computer Science 2019-11-13 Fengyou Sun , Yuming Jiang

The proposed research performs an analysis of the capacity higher-order statistics for a single-input multiple-output multiantenna wireless communication system equipped with a maximum-ratio combining scheme. It was assumed that the…

Information Theory · Computer Science 2022-04-05 Aleksey S. Gvozdarev

The paper presents a comprehensive closed-form performance analysis framework for multihop communications over Weibull fading channels. The analyzed scheme consists basically of multiple regenerative relays with generalized high-order…

Information Theory · Computer Science 2018-02-21 Abdelaziz Soulimani , Mustapha Benjillali , Hatim Chergui , Daniel B. da Costa
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