122 citations · 808 across the 87 of their papers we have counts for
110 papers
Toward Reliable and Accurate Predictive ISAC in Mobile mmWave Networks
Atefeh Rezaei, Vahid Jamali, Falko Dressler
Integrated sensing and communications (ISAC) systems offer a promising framework for beam tracking, which enhances channel awareness and improves communication reliability in mobil…
Source Distance and Source Strength Estimation in Turbulent Flow: Exploiting Molecule Degradation Diversity
Bastian Heinlein, Timo Jakumeit, Robert Schober +2
Locating an odor source and estimating its strength are central problems in nature and engineering. For example, an insect may decide whether a food source is worth traveling to ba…
Autoencoder-based Optimization of Multi-user Molecule Mixture Communication Systems
Bastian Heinlein, Nuria Zurita Jiménez, Kaikai Zhu +4
In this paper, we introduce an autoencoder (AE)-based scheme for end-to-end optimization of a multi-user molecule mixture communication system. In the proposed scheme, each transmi…
Matched Filter-Based Molecule Source Localization in Advection-Diffusion-Driven Pipe Networks with Known Topology
Timo Jakumeit, Bastian Heinlein, Vukašin Spasojević +3
Synthetic molecular communication (MC) has emerged as a powerful framework for modeling, analyzing, and designing communication systems where information is encoded into properties…
Molecule Mixture Detection and Design for MC Systems with Non-linear, Cross-reactive Receiver Arrays
Bastian Heinlein, Kaikai Zhu, Sümeyye Carkit-Yilmaz +6
Air-based molecular communication (MC) has the potential to be one of the first MC systems to be deployed in real-world applications, enabled by commercially available sensors. How…
Near-Field Multipath MIMO Channels: Modeling Reflectors and Exploiting NLOS Paths
Mohamadreza Delbari, George C. Alexandropoulos, Robert Schober +2
Near-field (NF) communications is receiving renewed interest in the context of multiple-input multiple-output (MIMO) systems involving large physical apertures with respect to the…
Molecule Mixture Detection and Alphabet Design for Non-linear, Cross-reactive Receiver Arrays in MC
Bastian Heinlein, Kaikai Zhu, Sümeyye Carkit-Yilmaz +6
Air-based molecular communication (MC) has the potential to be one of the first MC systems to be deployed in real-world applications, enabled by existing sensor technologies such a…
Rejuvenating IRS: AoI-based Low Overhead Reconfiguration Design
Jorge Torres Gómez, Joana Angjo, Moritz Garkisch +3
Intelligent reflective surface (IRS) technologies help mitigate undesirable effects in wireless links by steering the communication signal between transmitters and receivers. IRS e…
Near-Field Multipath MIMO Channel Model for Imperfect Surface Reflection
Mohamadreza Delbari, George C. Alexandropoulos, Robert Schober +2
Near-field (NF) communications is receiving renewed attention in the context of passive reconfigurable intelligent surfaces (RISs) due to their potentially extremely large dimensio…
Delay Dispersion in IRS-assisted FSO Links
Hedieh Ajam, Vahid Jamali, Bernhard Schmauss +1
The line-of-sight (LOS) requirement of free-space optical (FSO) systems can be relaxed by employing optical intelligent reflecting surfaces (IRSs). In this paper, we model the impa…
User Tracking and Direction Estimation Codebook Design for IRS-Assisted mmWave Communication
Moritz Garkisch, Sebastian Lotter, Gui Zhou +2
Future communication systems are envisioned to employ intelligent reflecting surfaces (IRSs) and the millimeter wave (mmWave) frequency band to provide reliable high-rate services.…
RISnet: A Domain-Knowledge Driven Neural Network Architecture for RIS Optimization with Mutual Coupling and Partial CSI
Bile Peng, Karl-Ludwig Besser, Shanpu Shen +5
Space-division multiple access (SDMA) plays an important role in modern wireless communications. Its performance depends on the channel properties, which can be improved by reconfi…
Performance Tradeoff Between Overhead and Achievable SNR in RIS Beam Training
Friedemann Laue, Vahid Jamali, Robert Schober
Efficient beam training is the key challenge in the codebook-based configuration of reconfigurable intelligent surfaces (RISs) because the beam training overhead can have a strong…
Far- versus Near-Field RIS Modeling and Beam Design
Mohamadreza Delbari, George C. Alexandropoulos, Robert Schober +1
In this chapter, we investigate the mathematical foundation of the modeling and design of reconfigurable intelligent surfaces (RIS) in both the far- and near-field regimes. More sp…
Reconfigurable Intelligent Surfaces with Liquid Crystal Technology: A Hardware Design and Communication Perspective
Alejandro Jiménez-Sáez, Arash Asadi, Robin Neuder +2
With the surge of theoretical work investigating Reconfigurable Intelligent Surfaces (RISs) for wireless communication and sensing, there exists an urgent need of hardware solution…
RISnet: A Scalable Approach for Reconfigurable Intelligent Surface Optimization with Partial CSI
Bile Peng, Karl-Ludwig Besser, Ramprasad Raghunath +2
The reconfigurable intelligent surface (RIS) is a promising technology that enables wireless communication systems to achieve improved performance by intelligently manipulating wir…
Deterministic Identification For MC Binomial Channel
Mohammad Javad Salariseddigh, Vahid Jamali, Holger Boche +2
The Binomial channel serves as a fundamental model for molecular communication (MC) systems employing molecule-counting receivers. Here, deterministic identification (DI) is addres…
Optical IRSs: Power Scaling Law, Optimal Deployment, and Comparison with 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 or optical intelligent reflecting surfaces (IRSs). In this paper,…
Experimental Research in Synthetic Molecular Communications -- Part II: Long-Range Communication
Sebastian Lotter, Lukas Brand, Vahid Jamali +10
In this second part of our survey on experimental research in Synthetic Molecular Communication (SMC), we review works on long-range SMC systems, i.e., systems with communication r…
Experimental Research in Synthetic Molecular Communications -- Part I: Overview and Short-Range Systems
Sebastian Lotter, Lukas Brand, Vahid Jamali +10
Since its emergence from the communication engineering community around one and a half decades ago, the field of Synthetic Molecular Communication (SMC) has experienced continued g…
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…