203 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- TU WienAT7 papers
- University of Southern CaliforniaUS3 papers
- AIT Austrian Institute of Technology GmbHAT2 papers
- ETH ZurichCH2 papers
- Lund UniversitySE2 papers
- Aalborg UniversityDK1 paper
- Aalto UniversityFI1 paper
- Brno University of TechnologyCZ1 paper
- Chalmers University of TechnologySE1 paper
- EURECOMFR1 paper
- Graz University of TechnologyAT1 paper
- Institut d'Électronique et des Technologies du numéRiqueFR1 paper
21 papers
Stochastic 3-D Foliage Modeling at 80 GHz: Experimental Validation and Ray-Tracing Simulations
Jiri Blumenstein, Radek Zavorka, Josef Vychodil +10
A stochastic modeling methodology for 3-D foliage is presented, aimed at enhancing ray-tracing simulations. The model supports adjustable stochastic geometry, density, and shape to…
Time-Varying Rician K-factor in Measured Vehicular Channels at cmWave and mmWave Bands
Faruk Pasic, Markus Hofer, Thomas Zemen +2
Future vehicular communication systems will integrate millimeter wave (mmWave) technology to enhance data transmission rates. To investigate the propagation effects and small-scale…
Impact of Channel Correlation on Subspace-Based Activity Detection in Grant-Free NOMA
Bashar Tahir, Stefan Schwarz, Markus Rupp
In this paper, we consider the problem of activity detection in grant-free code-domain non-orthogonal multiple access (NOMA). We focus on performing activity detection via subspace…
Outage Analysis of Uplink IRS-Assisted NOMA under Elements Splitting
Bashar Tahir, Stefan Schwarz, Markus Rupp
In this paper, we investigate the outage performance of an intelligent reflecting surface (IRS)-assisted non-orthogonal multiple access (NOMA) uplink, in which a group of the surfa…
On the Minimax Risk of Dictionary Learning
Alexander Jung, Yonina C. Eldar, Norbert Görtz
We consider the problem of learning a dictionary matrix from a number of observed signals, which are assumed to be generated via a linear model with a common underlying dictionary.…
Location-Quality-aware Policy Optimisation for Relay Selection in Mobile Networks
Jimmy J. Nielsen, Rasmus L. Olsen, Tatiana K. Madsen +2
Relaying can improve the coverage and performance of wireless access networks. In presence of a localisation system at the mobile nodes, the use of such location estimates for rela…
Distributed Estimation with Information-Seeking Control in Agent Network
Florian Meyer, Henk Wymeersch, Markus Fröhle +1
We introduce a distributed, cooperative framework and method for Bayesian estimation and control in decentralized agent networks. Our framework combines joint estimation of time-va…
Linearization of Time-Varying Nonlinear Systems Using A Modified Linear Iterative Method
Matthias Hotz, Christian Vogel
The linearization of nonlinear systems is an important digital enhancement technique. In this paper, a real-time capable post- and pre-linearization method for the widely applicabl…
Compressive Nonparametric Graphical Model Selection For Time Series
Alexander Jung, Reinhard Heckel, Helmut Bölcskei +1
We propose a method for inferring the conditional indepen- dence graph (CIG) of a high-dimensional discrete-time Gaus- sian vector random process from finite-length observations. O…
Wi-Fi Offload: Tragedy of the Commons or Land of Milk and Honey?
Patrick Zwickl, Paul Fuxjaeger, Ivan Gojmerac +1
Fueled by its recent success in provisioning on-site wireless Internet access, Wi-Fi is currently perceived as the best positioned technology for pervasive mobile macro network off…
Time- and Frequency-Varying -Factor of Non-Stationary Vehicular Channels for Safety Relevant Scenarios
Laura Bernadó, Thomas Zemen, Fredrik Tufvesson +2
Vehicular communication channels are characterized by a non-stationary time- and frequency-selective fading process due to fast changes in the environment. We characterize the dist…
Delay and Doppler Spreads of Non-Stationary Vehicular Channels for Safety Relevant Scenarios
Laura Bernadó, Thomas Zemen, Fredrik Tufvesson +2
Vehicular communication channels are characterized by a non-stationary time- and frequency-selective fading process due to rapid changes in the environment. The non-stationary fadi…
Degrees of Freedom of Certain Interference Alignment Schemes with Distributed CSIT
Paul de Kerret, Maxime Guillaud, David Gesbert
In this work, we consider the use of interference alignment (IA) in a MIMO interference channel (IC) under the assumption that each transmitter (TX) has access to channel state inf…
Pseudo-random Aloha for Enhanced Collision-recovery in RFID
Fabio Ricciato, Paolo Castiglione
In this letter we motivate the need to revisit the MAC protocol used in Gen2 RFID system in order to leverage receiver structures with Collision Recovery capabilities at the PHY la…
Likelihood Consensus-Based Distributed Particle Filtering with Distributed Proposal Density Adaptation
Ondrej Hlinka, Franz Hlawatsch, Petar M. Djuric
We present a consensus-based distributed particle filter (PF) for wireless sensor networks. Each sensor runs a local PF to compute a global state estimate that takes into account t…
Partner selection in indoor-to-outdoor cooperative networks: an experimental study
Paolo Castiglione, Stefano Savazzi, Monica Nicoli +1
In this paper, we develop a partner selection protocol for enhancing the network lifetime in cooperative wireless networks. The case-study is the cooperative relayed transmission f…
Influence of Doppler Bin Width on GPS Acquisition Probabilities
Bernhard C. Geiger, Christian Vogel
Acquisition is a search in two continuous dimensions, where the digital algorithms require a partitioning of the search space into cells. Depending on the partitioning of the Doppl…
Energy Management Policies for Energy-Neutral Source-Channel Coding
Paolo Castiglione, Osvaldo Simeone, Elza Erkip +1
In cyber-physical systems where sensors measure the temporal evolution of a given phenomenon of interest and radio communication takes place over short distances, the energy spent…
Performance of Interference Alignment in Clustered Wireless Ad Hoc Networks
R. Tresch, M. Guillaud
Spatial interference alignment among a finite number of users is proposed as a technique to increase the probability of successful transmission in an interference limited clustered…
On the Achievability of Interference Alignment in the K-User Constant MIMO Interference Channel
Roland Tresch, Maxime Guillaud, Erwin Riegler
Interference alignment in the K-user MIMO interference channel with constant channel coefficients is considered. A novel constructive method for finding the interference alignment…
Asymptotic Capacity Results for Non-Stationary Time-Variant Channels Using Subspace Projections
Thomas Zemen, Stefan M. Moser
In this paper we deal with a single-antenna discrete-time flat-fading channel. The fading process is assumed to be stationary for the duration of a single data block. From block to…