11 citations · 16 across the 6 of their papers we have counts for
8 papers · 1 filter
Power Scaling Law for Optical IRSs and Comparison with Optical Relays
Hedieh Ajam, Marzieh Najafi, Vahid Jamali +1
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). Unlike radio…
Modeling and Design of IRS-Assisted Multi-Link FSO Systems
Hedieh Ajam, Marzieh Najafi, Vahid Jamali +2
In this paper, we investigate the modeling and design of intelligent reflecting surface (IRS)-assisted optical communication systems which are deployed to relax the line-of-sight (…
Intelligent Reflecting Surface-assisted Free-space Optical Communications
Vahid Jamali, Hedieh Ajam, Marzieh Najafi +3
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 backhaul…
Channel Modeling for IRS-Assisted FSO Systems
Hedieh Ajam, Marzieh Najafi, Vahid Jamali +1
In this paper, we develop an analytical channel model for intelligent reflecting surface (IRS)-assisted free space optical (FSO) systems. Unlike IRS-assisted radio frequency system…
Physics-based Modeling of Large Intelligent Reflecting Surfaces for Scalable Optimization
Marzieh Najafi, Vahid Jamali, Robert Schober +1
In this paper, we develop a physics-based model that allows a scalable optimization of large intelligent reflecting surfaces (IRSs). The basic idea is to partition the IRS unit cel…
Ergodic Sum Rate Analysis of UAV-Based Relay Networks with Mixed RF-FSO Channels
Hedieh Ajam, Marzieh Najafi, Vahid Jamali +1
Unmanned aerial vehicle (UAV)-based communications is a promising new technology that can add a wide range of new capabilities to the current network infrastructure. Given the flex…