41 citations · 112 across the 24 of their papers we have counts for
28 papers
Realistic modeling of Photonic Terahertz Communication based on a real-world 30 km 30 Gbps experimental demonstration
Mingxu Wang, Jianjun Yu, Xianming Zhao +9
Experimental studies have demonstrated that THz links can support multi-kilometer, gigabit-per-second wireless transmission. However, few studies have effectively validated channel…
Analytical Channel Modeling and Stability Aware Optimization of Optical Inter Satellite Links
Hossein Safi, Ziheng Wang, Stijn Mast +2
Optical inter-satellite links (OISLs) are key enablers for high-capacity space networks and next-generation satellite constellations. However, their extreme directionality makes li…
OHL-Assisted All-Optical Regenerative Relaying for Pointing-Impaired M-PAM Inter-Satellite Links
Meysam Ghanbari, Mohammad Taghi Dabiri, Zain Ali +4
Rapid inter-satellite traffic growth in LEO constellations demands spectrally efficient, low-latency optical relaying. While amplify and forward (AF) relays are latency-efficient,…
Diffractive optical element for super-Gaussian beam shaping on intersatellite optical communications
Mario Badás Aldecocea, Ziheng Wang, Mohammad Dabiri +1
Pointing jitter can significantly degrade the performance of intersatellite optical communication links. This work investigates diffractive optical beam shaping as a means of gener…
VCSEL-Enhanced Holographic Communication for Next-Generation LiFi: State-of-the-Art, Applications, and Future Directions
Hossein Safi, Iman Tavakkolnia, Harald Haas
Light Fidelity (LiFi) has emerged as a promising wireless technology that exploits the vast unlicensed optical spectrum to complement radio frequency networks. Recent advances in l…
Q-Learning for 3D Coverage in VCSEL-based Optical Wireless Systems
Hossein Safi, Rizwana Ahmad, Iman Tavakkolnia +1
Beam divergence control is a key factor in maintaining reliable coverage in indoor optical wireless communication (OWC) systems as receiver height varies.Conventional systems emplo…
Ethernet-over-OWC Using VCSELs: Transparent Gigabit Links with Low Latency and Robust Alignment Tolerance
Hossein Safi, Isaac N. O. Osahon, Iman Tavakkolnia +1
We demonstrate a fully bidirectional 1 Gbs Ethernet over OWC link over a 1m free space path using a VCSEL-PIN pair and only commercially available components. The unamplified, tran…
Modulating Retroreflectors for CubeSat Optical Inter Satellite Links: Modeling, Optimization, and Benchmarking
Makafui Avevor, Hossein Safi, Harald Haas +1
Modulating retroreflectors (MRRs) offer a promising pathway to low-complexity and energy efficient asymmetric optical inter-satellite link (OISL) for small spacecrafts, such as Cub…
MRR-Based Line-Laser Scanning for Reliable Vehicular Positioning and Optical Communication
Mohammad Taghi Dabiri, Hossein Safi, Rula Ammuri +4
High-speed vehicular environments require optical systems capable of joint sensing, positioning, and communication (JSPC) without mechanical tracking. Existing optical and integrat…
Multi-Segment Photonic Power Converters for Energy Harvesting and High-Speed Optical Wireless Communication
Othman Younus, Behnaz Majlesein, Richard Nacke +6
The demand for energy-efficient high-speed wireless communication, coupled with the rapid rise of IoT devices, requires systems that integrate power harvesting with optical data re…
Picosecond Wireless Synchronization with Entangled Photons via Grid-Based Quantum Coverage in Indoor Optical Systems
Hossein Safi, Mohammad Taghi Dabiri, Mazen Hasna +2
In this paper, we present a robust entanglement-assisted synchronization framework for indoor optical wireless systems that explicitly captures the coupling between spatial beam ge…
Energy-Efficient Precoding for Dense VCSEL-Based OWC Systems Under a Cooperative Broadcast Model
Hossein Safi, Asim Ihsan, Hossien B. Eldeeb +3
As 6G and beyond aim for sustainable, high-capacity wireless connectivity, optical wireless communication (OWC) has emerged as a compelling solution.Recent advances in vertical-cav…
Safety Analysis for Distributed Coupled-Cavity Laser based Wireless Power Transfer
Mingqing Liu, Hao Deng, Iman Tavakkolnia +3
Intracavity laser-based systems are emerging as key enablers for next-generation wireless communications, positioning, and wireless power transfer (WPT). Distributed coupled-cavity…
A Comprehensive Comparison between Terahertz and Optical Wireless Communications
Mingqing Liu, Hossein Kazemi, Majid Safari +2
This paper presents a comprehensive quantitative comparison between Terahertz (THz) communication (TeraCom) and optical wireless communication (OWC) technologies, focusing on both…
Efficient Service Differentiation and Energy Management in Hybrid WiFi/LiFi Networks
Asim Ihsan, Muhammad Asif, Hossein Safi +2
In this paper, we propose an innovative predict-and-optimize algorithm designed for hybrid WiFi/LiFi networks, aiming to achieve service differentiation while maximizing energy eff…
Optical Wireless Communications: Enabling the Next Generation Network of Networks
Aravindh Krishnamoorthy, Hossein Safi, Othman Younus +20
Optical wireless communication (OWC) is a promising technology anticipated to play a key role in the next-generation network of networks, especially as a complementary technology t…
AI-Native Multi-Access Future Networks -- The REASON Architecture
Konstantinos Katsaros, Ioannis Mavromatis, Kostantinos Antonakoglou +13
The development of the sixth generation of communication networks (6G) has been gaining momentum over the past years, with a target of being introduced by 2030. Several initiatives…
CubeSat-Enabled Free-Space Optics: Joint Data Communication and Fine Beam Tracking
Hossein Safi, Mohammad Taghi Dabiri, Julian Cheng +2
The integration of CubeSats with Free Space Optical (FSO) links accelerates a major advancement in high-throughput, low-Earth orbit communication systems. However, CubeSats face ch…
Intelligent Reflecting Surfaces for Enhanced Physical Layer Security in NOMA VLC Systems
Hanaa Abumarshoud, Cheng Chen, Iman Tavakkolnia +2
The rise of intelligent reflecting surfaces (IRSs) is opening the door for unprecedented capabilities in visible light communication (VLC) systems. By controlling light propagation…
Spatial and Wavelength Division Joint Multiplexing System Design for Visible Light Communications
Cheng Chen, Shenjie Huang, Iman Tavakkolnia +2
The low-pass characteristics of front-end elements including light-emitting diodes (LEDs) and photodiodes (PDs) limit the transmission data rate of visible light communication (VLC…
Adaptive Target-Condition Neural Network: DNN-Aided Load Balancing for Hybrid LiFi and WiFi Networks
Han Ji, Qiang Wang, Stephen J. Redmond +2
Load balancing (LB) is a challenging issue in the hybrid light fidelity (LiFi) and wireless fidelity (WiFi) networks (HLWNets), due to the nature of heterogeneous access points (AP…
Invoking Deep Learning for Joint Estimation of Indoor LiFi User Position and Orientation
Mohamed Amine Arfaoui, Mohammad Dehghani Soltani, Iman Tavakkolnia +4
Light-fidelity (LiFi) is a fully-networked bidirectional optical wireless communication (OWC) that is considered a promising solution for high-speed indoor connectivity. Unlike in…
Measurements-Based Channel Models for Indoor LiFi Systems
Mohamed Amine Arfaoui, Mohammad Dehghani Soltani, Iman Tavakkolnia +4
Light-fidelity (LiFi) is a fully-networked bidirectional optical wireless communication (OWC) that is considered a promising solution for high-speed indoor connectivity. Unlike in…
OFDM-Based Optical Spatial Modulation
Anil Yesilkaya, Rui Bian, Iman Tavakkolnia +1
Spatial modulation (SM) has proven to be a promising multiple-input-multiple-output (MIMO) technique which provides high energy efficiency and reduces system complexity. In SM, onl…