Publication
Optimal Estimator-Detector Receivers for Space-Time Block Coding
Publications associées (41)
Gradient flow dynamics of shallow ReLU networks for square loss and orthogonal inputs
Nicolas Henri Bernard Flammarion, Etienne Patrice Boursier, Loucas Pillaud-Vivien
The training of neural networks by gradient descent methods is a cornerstone of the deep learning revolution. Yet, despite some recent progress, a complete theory explaining its success is still missing. This article presents, for orthogonal input vectors, ...
2022Physics-informed machine learning for reduced-order modeling of nonlinear problems
Qian Wang, Jan Sickmann Hesthaven
A physics-informed machine learning framework is developed for the reduced-order modeling of parametrized steady-state partial differential equations (PDEs). During the offline stage, a reduced basis is extracted from a collection of high-fidelity solution ...
2020Mitigating Slow Dynamics of Low-Cost Chemical Sensors for Mobile Air Quality Monitoring Sensor Networks
Alcherio Martinoli, Ali Marjovi, Adrian Arfire
The last decade has seen a growing interest in air quality monitoring using networks of wireless low-cost sensor platforms. One of the unifying characteristics of chemical sensors typically used in real-world deployments is their slow response time. While ...
2016OFDM Channel Estimation Based on Impulse Response Decimation: Analysis and Novel Algorithms
In this paper, OFDM data-aided channel estimation based on the decimation of the Channel Impulse Response (CIR) through the selection of the Most Significant Samples (MSS) is addressed. Our aim is to approach the Minimum Mean Square Error (MMSE) channel es ...
Institute of Electrical and Electronics Engineers2012An application of Evolutionary Optimization Algorithms for Determining Concentration and Velocity Profiles in Sheet flows and Overlying Layers
David Andrew Barry, Roham Bakhtyar
The Particle Swarm Optimization (PSO) method and the Genetic Algorithm (GA) were used to derive formulas for determining the velocity and concentration profiles in sheet flows. Specifically, these evolutionary optimization algorithms were used in conjuncti ...
Asme-Amer Soc Mechanical Eng2012Reduced-Dimension Linear Transform Coding of Correlated Signals in Networks
Michael Christoph Gastpar, Naveen Goela
A model called the linear transform network (LTN) is proposed to analyze the compression and estimation of correlated signals transmitted over directed acyclic graphs (DAGs). An LTN is a DAG network with multiple source and receiver nodes. Source nodes tra ...
Institute of Electrical and Electronics Engineers2012Time/frequency coding for Brillouin distributed sensors
Luc Thévenaz, Marcelo Alfonso Soto Hernandez
In this paper, we propose a novel coding for long range Brillouin Optical Time Analysis (BOTDA) distributed sensors based on a combination of time and frequency pulses, resulting in an additional coding gain of √2 with respect to traditional intensit ...
2012Hierarchical wavelet modelling of environmental sensor data
Anthony Christopher Davison, Yann Ruffieux
Motivated by the need to smooth and to summarize multiple simultaneous time series arising from networks of environmental monitors, we propose a hierarchical wavelet model for which estimation of hyperparameters can be performed by marginal maximum likelih ...
2011A tight bound on the performance of a minimal-delay joint source-channel coding scheme
An analog source is to be transmitted across a Gaussian channel in more than one channel use per source symbol. This paper derives a lower bound on the asymptotic mean squared error for a strategy that consists of repeatedly quantizing the source, transmit ...
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010Strategies for Delay-Limited Source-Channel Coding
In point-to-point source-channel communication with a fidelity criterion and a transmission cost constraint, the region of achievable cost and fidelity pairs is completely characterized by Shannon's separation theorem. However, this is in general only true ...
EPFL2010