49 citations · 171 across the 18 of their papers we have counts for
20 papers · 1 filter
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…
Secrecy Performance of a Keyhole-based Multi-user System with Multiple Eavesdroppers
Parwez Alam, Ankit Dubey, Jules M. Moualeu +2
This paper investigates the secrecy performance of a keyhole-aided multi-user communication network in the presence of multiple eavesdroppers. The communication happens through the…
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…
RIS-Aided Physical Layer Security Improvement in Underlay Cognitive Radio Networks
Majid H. Khoshafa, Telex M. N. Ngatchede, Mohamed H. Ahmed
In this paper, a reconfigurable intelligent surface (RIS)-aided underlay cognitive radio network is investigated. An RIS is utilized to improve the secondary network (SN) reliabili…
Deep Reinforcement Learning for Optimizing RIS-Assisted HD-FD Wireless Systems
Alice Faisal, Ibrahim Al-Nahhal, Octavia A. Dobre +1
This letter investigates the reconfigurable intelligent surface (RIS)-assisted multiple-input single-output (MISO) wireless system, where both half-duplex (HD) and full-duplex (FD)…
Design of a Power Amplifying-RIS for Free-Space Optical Communication Systems
Alain R. Ndjiongue, Telex M. N. Ngatched, Octavia A. Dobre +1
The steering dynamics of re-configurable intelligent surfaces (RIS) have hoisted them to the front row of technologies that can be exploited to solve skip-zones in wireless communi…