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The abundant optical spectrum is a promising part of the electromagnetic spectrum for 6G communication systems. The visible light spectrum which is a part of the optical spectrum, can be used to provide communication and illumination…

Signal Processing · Electrical Eng. & Systems 2020-08-06 Osama Zwaid Alsulami , T. E. H. El-Gorashi , Jaafar M. H. Elmirghani

In this paper, we investigate the impact of user distribution on resource allocation in visible light communication (VLC) systems, using a wavelength division multiple access (WDMA) scheme. Two different room layouts are examined in this…

Optical wireless communication (OWC) systems are a promising communication technology that can provide high data rates into the tens of Tb/s and can support multiple users at the same time. This paper investigates the optimum allocation of…

Signal Processing · Electrical Eng. & Systems 2020-01-09 Osama Alsulami , Amal Alahmadi , Sarah Saeed , Sana Hamid Mohamed , Taisir El-Gorashi , Mohammed Alresheedi , Jaafar Elmirghani

In multi-user optical wireless communication (OWC) systems interference between users and cells can significantly affect the quality of OWC links. Thus, in this paper, a mixed-integer linear programming (MILP) model is developed to…

Networking and Internet Architecture · Computer Science 2020-04-21 Osama Zwaid Alsulami , Sarah O. M. Saeed , Sanaa Hamid Mohamed , T. E. H. El-Gorashi , Mohammed T. Alresheedi , Jaafar M. H. Elmirghani

Visible Light Communication (VLC) has been widely investigated during the last decade due to its ability to provide high data rates with low power consumption. In general, resource management is an important issue in cellular networks that…

Networking and Internet Architecture · Computer Science 2021-05-25 Abdelrahman S. Elgamal , Osama Z. Alsulami , Ahmad Adnan Qidan , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

This paper introduces a novel approach to optimize energy efficiency in wavelength division multiplexing (WDM) Visible Light Communication (VLC) systems designed for indoor broadcasting networks. A physics-based LED model is integrated into…

Systems and Control · Electrical Eng. & Systems 2024-03-26 Dayu Shi , Xun Zhang , Ziqi Liu , Xuanbang Chen , Jianghao Li , Xiaodong Liu , William Shieh

A system that employs wavelength division multiplexing (WDM) in conjunction with subcarrier multiplexing (SCM) tones is proposed to realize high data rate multi-user indoor visible light communication (VLC). The SCM tones, which are…

Signal Processing · Electrical Eng. & Systems 2018-11-06 Safwan Hafeedh Younus , Aubida A. Al-Hameed , Ahmed Taha Hussein , Mohammed T. Alresheedi , Jaafar M. H. Elmirghani

Visible light communication (VLC) is an emerging technique that uses light-emitting diodes (LED) to combine communication and illumination. It is considered as a promising scheme for indoor wireless communication that can be deployed at…

Signal Processing · Electrical Eng. & Systems 2017-09-19 Houssem Sifaou , Ki-Hong Park , Abla Kammoun , Mohamed-Slim Alouini

Visible light communications (VLC) is a promising technology to address the spectrum crunch problem in radio frequency (RF) networks. A major advantage of VLC networks is that they can use the existing lighting infrastructure in indoor…

Information Theory · Computer Science 2017-07-19 Yusuf Said Eroglu , Ismail Guvenc , Alphan Sahin , Yavuz Yapici , Nezih Pala , Murat Yuksel

Visible Light Communication (VLC) is a rapidly growing technology which can supplement the current radio frequency (RF) based wireless communication systems. VLC can play a huge part in solving the ever-increasing problem of spectrum…

Networking and Internet Architecture · Computer Science 2020-12-03 Sifat Ibne Mushfique , Ahmad Alsharoa , Murat Yuksel

Resource allocation and interference management are two main issues that need to be carefully addressed in visible light communication (VLC) systems. In this paper, we propose a resource allocation scheme that can also handle the inter-cell…

Information Theory · Computer Science 2018-04-25 Marwan Hammouda , Anna Maria Vegni , Harald Haas , Jürgen Peissig

Wavelength division multiplexing (WDM) and non-orthogonal multiple access (NOMA) are employed in a visible light communication (VLC) system to increase the capacity of the system. The system is evaluated using two different scenarios…

Signal Processing · Electrical Eng. & Systems 2019-04-02 Mansourah K. A. Aljohani 1 , Mohamed O. I. Musa1 , Mohammed T. Alresheedi2 , Jaafar M. H

In this paper, we study a multi-user visible light communication (VLC) system assisted with optical reflecting intelligent surface (ORIS). Joint precoding and alignment matrices are designed to maximize the average signal-to-interference…

Information Theory · Computer Science 2023-12-14 Mahmoud Atashbar , Hamed Alizadeh Ghazijahani , Yong Liang Guan , Zhaojie Yang

Vertical Cavity Surface Emitting Lasers (VCSELs) have demonstrated suitability for data transmission in indoor optical wireless communication (OWC) systems due to the high modulation bandwidth and low manufacturing cost of these sources.…

Signal Processing · Electrical Eng. & Systems 2021-06-23 Abdelrahman S. Elgamal , Osama Z. Alsulami , Ahmad Adnan Qidan , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

One of the main aims of indoor visible light communication (VLC) systems is to deliver a high data rate service in single user and in multiuser scenarios. A key obstacle is the ability of the indoor VLC channel to support high data rates in…

Signal Processing · Electrical Eng. & Systems 2019-08-20 Safwan Hafeedh Younus , Aubida A. Al-Hameed , Jaafar M. H. Elmirghani

In this paper, we study the time allocation optimization problem to maximize the sum throughput in a dual-hop heterogeneous visible light communication (VLC)/radio frequency (RF) communication system. Two scenarios are investigated in this…

Visible light communication (VLC) is a promising solution to satisfy the extreme demands of emerging applications. VLC offers bandwidth that is orders of magnitude higher than what is offered by the radio spectrum, hence making best use of…

Signal Processing · Electrical Eng. & Systems 2023-04-11 Abdelrahman S. Elgamal , Osama Z. Aletri , Barzan A. Yosuf , Ahmad Adnan Qidan , Taisir El-Gorashi , Jaafar M. H. Elmirghani

Ultra-reliability and low latency communication has long been an important but challenging task in the fifth and sixth generation wireless communication systems. Scheduling as many users as possible to serve on the limited time-frequency…

Information Theory · Computer Science 2021-09-10 Shiwen He , Jun Yuan , Zhenyu An , Yunshan Yi , Yongming Huang

Visible light communications (VLC) is gaining interest as one of the enablers of short-distance, high-data-rate applications, in future beyond 5G networks. Moreover, non-orthogonal multiple-access (NOMA)-enabled schemes have recently…

Information Theory · Computer Science 2021-05-28 Omar Maraqa , Umair F. Siddiqi , Saad Al-Ahmadi , Sadiq M. Sait

This work addresses the radio resource management (RRM) design in downlink full-duplex integrated sensing and communications (ISAC) systems, jointly optimizing timeslot allocation and beam selection under imperfect self-interference…

Signal Processing · Electrical Eng. & Systems 2025-10-23 Luis F. Abanto-Leon , Setareh Maghsudi
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