85 citations · 166 across the 25 of their papers we have counts for
9 papers · 1 filter
Codebook-Based User Tracking in IRS-Assisted mmWave Communication Networks
Moritz Garkisch, Vahid Jamali, Robert Schober
In this paper, we present a novel mobile user tracking (UT) scheme for codebook-based intelligent reflecting surface (IRS) aided millimeter wave (mmWave) systems. The proposed UT s…
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…