no code implementations • 25 Feb 2024 • Cheng Cheng, Sovan Das, Stefan Videv, Adrian Spark, Sina Babadi, Aravindh Krishnamoorthy, Changmin Lee, Daniel Grieder, Kathleen Hartnett, Paul Rudy, James Raring, Marzieh Najafi, Vasilis K. Papanikolaou, Robert Schober, Harald Haas
In this paper, we demonstrate the communication capabilities of light-fidelity (LiFi) systems based on highbrightness and high-bandwidth integrated laser-based sources in a surface mount device (SMD) packaging platform.
no code implementations • 17 Mar 2023 • Hedieh Ajam, Marzieh Najafi, Vahid Jamali, Robert Schober
We also consider the impact of linear, quadratic, and focusing phase shift profiles across the IRS on the power collected at the Rx lens for different IRS sizes.
no code implementations • 5 May 2022 • Hedieh Ajam, Marzieh Najafi, Vahid Jamali, Robert Schober
The line-of-sight (LOS) requirement of free-space optical (FSO) systems can be relaxed by employing optical relays and optical intelligent reflecting surfaces (IRSs).
no code implementations • 31 Jul 2021 • Hedieh Ajam, Marzieh Najafi, Vahid Jamali, Bernhard Schmauss, Robert Schober
Our simulation results validate the accuracy of the proposed analytical channel model for IRS-assisted FSO systems and confirm that this model is applicable for both large and intermediate IRS-receiver lens distances.
no code implementations • 13 May 2021 • Vahid Jamali, Hedieh Ajam, Marzieh Najafi, Bernhard Schmauss, Robert Schober, H. Vincent Poor
Free-space optical (FSO) systems are able to offer the high data-rate, secure, and cost-efficient communication links required for applications such as wireless front- and backhauling for 5G and 6G communication networks.
no code implementations • 1 Oct 2020 • Hedieh Ajam, Marzieh Najafi, Vahid Jamali, Robert Schober
In this paper, we develop an analytical channel model for intelligent reflecting surface (IRS)-assisted free space optical (FSO) systems.
no code implementations • 5 Jun 2020 • Marzieh Najafi, Vahid Jamali, Robert Schober, Vincent H. Poor
Based on this model, one can design the phase shifts of the unit cells of a tile offline for the support of several transmission modes and then select the best mode online for a given channel realization.