100 citations · 492 across the 30 of their papers we have counts for
4 papers · 1 filter
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 RIS-Assisted FD Systems: Single or Distributed RIS?
Alice Faisal, Ibrahim Al-Nahhal, Octavia A. Dobre +1
This paper investigates reconfigurable intelligent surface (RIS)-assisted full-duplex multiple-input single-output wireless system, where the beamforming and RIS phase shifts are o…
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…
Double-Sided Beamforming in OWC Systems Using Omni-Digital Reconfigurable Intelligent Surfaces
Alain R. Ndjiongue, Telex M. N. Ngatched, Octavia A. Dobre +1
In this paper, we introduce a variant of reconfigurable intelligent surfaces (RISs) called omni-digital-RISs (DRISs), which allow multiple physical processes, with application to o…