11 citations · 16 across the 6 of their papers we have counts for
7 papers · 1 filter
Power Efficiency, Overhead, and Complexity Tradeoff in IRS-Assisted Communications -- Quadratic Phase-Shift Design
Vahid Jamali, Marzieh Najafi, Robert Schober +1
In this paper, we focus on large intelligent reflecting surfaces (IRSs) and propose a new codebook construction method to obtain a set of predesigned phase-shift configurations for…
Intelligent Reflecting Surfaces for Free Space Optical Communications
Marzieh Najafi, Bernhard Schmauss, Robert Schober
In this paper, we investigate the use of intelligent reflecting surfaces (IRSs) to relax the line-of-sight requirement of free space optical (FSO) systems. Considering a Gaussian l…
Physics-based Modeling and Scalable Optimization of Large Intelligent Reflecting Surfaces
Marzieh Najafi, Vahid Jamali, Robert Schober +1
Intelligent reflecting surfaces (IRSs) have the potential to transform wireless communication channels into smart reconfigurable propagation environments. To realize this new parad…
Intelligent Reflecting Surfaces for Free Space Optical Communications
Marzieh Najafi, Robet Schober
In this paper, we investigate the use of intelligent reflecting surfaces (IRSs) (i.e., smart mirrors) to relax the line-of-sight requirement of free space optical (FSO) systems. We…
C-RAN with Hybrid RF/FSO Fronthaul Links: Joint Optimization of RF Time Allocation and Fronthaul Compression
Marzieh Najafi, Vahid Jamali, Derrick Wing Kwan Ng +1
This paper considers the uplink of a cloud radio access network (C-RAN) comprised of several multi-antenna remote radio units (RUs) which compress the signals that they receive fro…
Statistical Modeling of FSO Fronthaul Channel for Drone-based Networks
Marzieh Najafi, Hedieh Ajam, Vahid Jamali +3
We consider a drone-based communication network, where several drones hover above an area and serve as mobile remote radio heads for a large number of mobile users. We assume that…