404 citations · 631 across the 12 of their papers we have counts for
12 papers
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.…
Beyond Diagonal RIS-Aided Wireless Communications Systems: State-of-the-Art and Future Research Directions
Omar Maraqa, Majid H. Khoshafa, Olutayo O. Oyerinde +1
Integrating BD-RIS into wireless communications systems has attracted significant interest due to its transformative potential in enhancing system performance. This survey provides…
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…
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…
Optimized Design of Joint Mirror Array and Liquid Crystal-Based RIS-Aided VLC systems
Omar Maraqa, Telex M. N. Ngatched
Most studies of reflecting intelligent surfaces (RISs)-assisted visible light communication (VLC) systems have focused on the integration of RISs in the channel to combat the line-…
Energy-Efficient Optimization of Multi-User NOMA-Assisted Cooperative THz-SIMO MEC Systems
Omar Maraqa, Saad Al-Ahmadi, Aditya Rajasekaran +3
The various requirements in terms of data rates and latency in beyond 5G and 6G networks have motivated the integration of a variety of communications schemes and technologies to m…
Vision-Assisted User Clustering for Robust mmWave-NOMA Systems
Aditya S. Rajasekaran, Hamza U. Sokun, Omar Maraqa +2
When operated in the mmWave band, user channels get highly correlated which can be exploited in mmWave-NOMA systems to cluster a set of "correlated" users together. Identifying the…
On the Achievable Max-Min User Rates in Multi-Carrier Centralized NOMA-VLC Networks
Omar Maraqa, Umair F. Siddiqi, Saad Al-Ahmadi +1
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…
Energy-Efficient Coverage Enhancement of Indoor THz-MISO Systems: An FD-NOMA Approach
Omar Maraqa, Aditya S. Rajasekaran, Hamza U. Sokun +3
Terahertz (THz) communication is gaining more interest as one of the envisioned enablers of high-data-rate short-distance indoor applications in beyond 5G networks. Moreover, non-o…
User Clustering in mmWave-NOMA Systems with User Decoding Capability Constraints for B5G Networks
Aditya S. Rajasekaran, Omar Maraqa, Hamza U. Sokun +2
This paper proposes a millimeter wave-NOMA (mmWave-NOMA) system that takes into account the end-user signal processing capabilities, an important practical consideration. The imple…
A Survey of Rate-optimal Power Domain NOMA with Enabling Technologies of Future Wireless Networks
Omar Maraqa, Aditya S. Rajasekaran, Saad Al-Ahmadi +2
The ambitious high data-rate applications in the envisioned future B5G networks require new solutions, including the advent of more advanced architectures than the ones already use…
Multi-User Visible Light Communications: State-of-the-Art and Future Directions
Saad Al-Ahmadi, Omar Maraqa, Murat Uysal +1
Visible light communication (VLC) builds upon the dual use of existing lighting infrastructure for wireless data transmission. VLC has recently gained interest as cost-effective, s…