122 citations · 808 across the 87 of their papers we have counts for
10 papers · 1 filter
Low-to-Zero-Overhead IRS Reconfiguration: Decoupling Illumination and Channel Estimation
Vahid Jamali, George C. Alexandropoulos, Robert Schober +1
Most algorithms developed so far for the optimization of Intelligent Reflecting Surfaces (IRSs) require knowledge of full Channel State Information (CSI). However, the resulting ac…
Parametric Channel Estimation for LoS Dominated Holographic Massive MIMO Systems
Mojtaba Ghermezcheshmeh, Vahid Jamali, Haris Gacanin +1
Holographic massive multiple-input multiple-output (MIMO), in which a spatially continuous surface is being used for signal transmission and reception, have emerged as a promising…
Area Rate Efficiency in Multi-Link Molecular Communications
Lukas Brand, Sebastian Lotter, Vahid Jamali +2
We consider a multi-link diffusion-based molecular communication (MC) system where multiple spatially distributed transmitter (TX)-receiver (RX) pairs establish point-to-point comm…
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…
IRS-Assisted Active Device Detection
Friedemann Laue, Vahid Jamali, Robert Schober
This paper studies intelligent reflecting surface (IRS) assisted active device detection. Since the locations of the devices are a priori unknown, optimal IRS beam alignment is not…
Area Rate Efficiency in Molecular Communications
Lukas Brand, Sebastian Lotter, Vahid Jamali +1
We consider a multiuser diffusion-based molecular communication (MC) system where multiple spatially distributed transmitter (TX)-receiver (RX) pairs establish point-to-point commu…
Optimal Resource Allocation Design for Large IRS-Assisted SWIPT Systems: A Scalable Optimization Framework
Dongfang Xu, Vahid Jamali, Xianghao Yu +2
In this paper, we study the optimal resource allocation algorithm design for large intelligent reflecting surface (IRS)-assisted simultaneous wireless information and power transfe…
Smart and Reconfigurable Wireless Communications: From IRS Modeling to Algorithm Design
Xianghao Yu, Vahid Jamali, Dongfang Xu +2
Intelligent reflecting surfaces (IRSs) have been introduced into wireless communications systems due to their great potential to smartly customize and reconfigure radio propagation…
Experimental System for Molecular Communication in Pipe Flow With Magnetic Nanoparticles
Wayan Wicke, Harald Unterweger, Jens Kirchner +7
In the emerging field of molecular communication (MC), testbeds are needed to validate theoretical concepts, motivate applications, and guide further modeling efforts. To this end,…