activity
20222025
most citedOptical STAR-RIS-Aided VLC Systems: RSMA Versus NOMA

55 citations · 68 across the 7 of their papers we have counts for

collaborators

7 papers

eess.SP2025

Movable Access Points in Visible Light Communications: Opportunities, Challenges and Future Directions

Sylvester Aboagye, Telex M. N. Ngatched

Visible light communication (VLC) is expected to be a key component of future wireless networks due to its abundant license-free spectrum, inherent high-level security, and the alr…

cs.IT2025

Max-Min Secrecy Rate and Secrecy Energy Efficiency Optimization for RIS-Aided VLC Systems: RSMA Versus NOMA

Omar Maraqa, Sylvester Aboagye, Majid H. Khoshafa +1

Integrating VLC with the RIS significantly enhances physical layer security by enabling precise directional signal control and dynamic adaptation to the communication environment.…

cs.IT2024

Joint Spectrum Partitioning and Power Allocation for Energy Efficient Semi-Integrated Sensing and Communications

Ammar Mohamed Abouelmaati, Sylvester Aboagye, Hina Tabassum

With spectrum resources becoming congested and the emergence of sensing-enabled wireless applications, conventional resource allocation methods need a revamp to support communicati…

cs.IT2024

RIS-Assisted Physical Layer Security in Emerging RF and Optical Wireless Communication Systems: A Comprehensive Survey

Majid H. Khoshafa, Omar Maraqa, Jules M. Moualeu +5

Physical layer security (PLS) has received a growing interest from the research community for its ability to safeguard data confidentiality without relying on key distribution or e…

cs.IT2023★ 55 cited

Optical STAR-RIS-Aided VLC Systems: RSMA Versus NOMA

Omar Maraqa, Sylvester Aboagye, Telex M. N. Ngatched

A critical concern within the realm of visible light communications (VLC) pertains to enhancing system data rate, particularly in scenarios where the direct line-of-sight (LoS) con…

eess.SP2023★ 1 cited

Liquid Crystal-Based RIS for VLC Transmitters: Performance Analysis, Challenges, and Opportunities

Sylvester Aboagye, Telex M. N. Ngatched, Alain R. Ndjiongue +2

This article presents a novel approach of using reconfigurable intelligent surfaces (RISs) in the transmitter of indoor visible light communication (VLC) systems to enhance data ra…

eess.SP2022★ 12 cited

RIS-Assisted Visible Light Communication Systems: A Tutorial

Sylvester Aboagye, Alain R. Ndjiongue, Telex M. N. Ngatched +2

Recent development of the fifth-generation (5G) of cellular networks has led to their deployment worldwide. As part of the implementation, one of the challenges that must be addres…