122 citations · 808 across the 87 of their papers we have counts for
13 papers · 1 filter
A High-Level Comparison of Recent Technologies for Massive MIMO Architectures
Hans Rosenberger, Bernhard Gäde, Ali Bereyhi +6
Since the introduction of massive MIMO (mMIMO), the design of a transceiver with feasible complexity has been a challenging problem. Initially, it was believed that the main issue…
Deterministic Identification For MC ISI-Poisson Channel
Mohammad Javad Salariseddigh, Vahid Jamali, Uzi Pereg +3
Several applications of molecular communications (MC) feature an alarm-prompt behavior for which the prevalent Shannon capacity may not be the appropriate performance metric. The i…
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…
Impact of Channel Models on Performance Characterization of RIS-Assisted Wireless Systems
Vahid Jamali, Walid Ghanem, Robert Schober +1
The performance characterization of communication systems assisted by large reconfigurable intelligent surfaces (RISs) significantly depends on the adopted models for the underlyin…
Codebook Based Two-Time Scale Resource Allocation Design for IRS-Assisted eMBB-URLLC Systems
Walid R. Ghanem, Vahid Jamali, Malte Schellmann +3
This paper investigates the resource allocation algorithm design for wireless systems assisted by large intelligent reflecting surfaces (IRSs) with coexisting enhanced mobile broad…
RIS Assisted Device Activity Detection with Statistical Channel State Information
Friedemann Laue, Vahid Jamali, Robert Schober
This paper studies reconfigurable intelligent surface (RIS) assisted device activity detection for grant-free (GF) uplink transmission in wireless communication networks. In partic…
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…
Compressive Sensing-Based Recovery of Molecular Mixtures with Cross-Reactive Receptor Arrays
Vahid Jamali, Helene M. Loos, Andrea Buettner +2
In this paper, we propose a novel concept for engineered molecular communication (MC) systems inspired by animal olfaction. We focus on a multi-user scenario where transmitters emp…
Near-Field Hierarchical Beam Management for RIS-Enabled Millimeter Wave Multi-Antenna Systems
George C. Alexandropoulos, Vahid Jamali, Robert Schober +1
In this paper, we present a low overhead beam management approach for near-field millimeter-wave multi-antenna communication systems enabled by Reconfigurable Intelligent Surfaces…
Olfaction-inspired MCs: Molecule Mixture Shift Keying and Cross-Reactive Receptor Arrays
Vahid Jamali, Helene M. Loos, Andrea Buettner +2
In this paper, we propose a novel concept for engineered molecular communication (MC) systems inspired by animal olfaction. We focus on a multi-user scenario where several transmit…
Deterministic Identification for Molecular Communications over the Poisson Channel
Mohammad Javad Salariseddigh, Uzi Pereg, Holger Boche +3
Various applications of molecular communications (MC) are event-triggered, and, as a consequence, the prevalent Shannon capacity may not be the right measure for performance assess…
Optimization-based Phase-shift Codebook Design for Large IRSs
Walid R. Ghanem, Vahid Jamali, Malte Schellmann +3
In this paper, we focus on large intelligent reflecting surfaces (IRSs) and propose a new codebook construction method to obtain a set of pre-designed phase-shift configurations fo…
Pulse Shaping for MC via Particle Size
Wayan Wicke, Rebecca C. Felsheim, Lukas Brand +4
In molecular communication (MC), combining different types of particles at the transmitter is a degree of freedom which can be utilized to improve performance. In this paper, we ad…