no code implementations • 25 Apr 2024 • Amitha Mayya, Arsenia Chorti, Rafael F. Schaefer, Gerhard P. Fettweis
Our investigation centers on a frequency-selective line-of-sight (LoS) multipath channel, with a particular emphasis on assessing SKG rates derived from the distributions of RSS.
no code implementations • 19 Sep 2023 • Muah Kim, Rick Fritschek, Rafael F. Schaefer
Furthermore, we examine the trade-off between sample quality and sampling speed, when an accelerated sampling algorithm is deployed, and investigate the effect of the noise scheduling on this trade-off.
no code implementations • 11 Sep 2023 • Yuzhou Gu, Ziqi Zhou, Onur Günlü, Rafael G. L. D'Oliveira, Parastoo Sadeghi, Muriel Médard, Rafael F. Schaefer
In this framework, datasets are nodes in a graph, and two neighboring datasets are connected by an edge.
no code implementations • 3 Feb 2023 • Muah Kim, Rick Fritschek, Rafael F. Schaefer
This places the challenge to approximate or generate the channel or its derivative from samples generated by pilot signaling in real-world scenarios.
no code implementations • 4 Sep 2022 • Onur Günlü, Rick Fritschek, Rafael F. Schaefer
Small neural networks (NNs) used for error correction were shown to improve on classic channel codes and to address channel model changes.
no code implementations • 10 May 2022 • Onur Günlü, Rafael F. Schaefer, Holger Boche, H. Vincent Poor
The problem of secure source coding with multiple terminals is extended by considering a remote source whose noisy measurements are the correlated random variables used for secure source reconstruction.
no code implementations • 22 Feb 2022 • Onur Günlü, Matthieu Bloch, Rafael F. Schaefer, Aylin Yener
For independent and identically distributed states, perfect output feedback, and when part of the transmitted message should be kept secret, a partial characterization of the secrecy-distortion region is developed.
no code implementations • 8 Feb 2022 • Ziqi Zhou, Onur Günlü, Rafael G. L. D'Oliveira, Muriel Médard, Parastoo Sadeghi, Rafael F. Schaefer
We extend a previous framework for designing differentially private (DP) mechanisms via randomized graph colorings that was restricted to binary functions, corresponding to colorings in a graph, to multi-valued functions.
no code implementations • 12 Nov 2021 • Gerhard Wunder, Benedikt Groß, Rick Fritschek, Rafael F. Schaefer
The Jensen inequality is a widely used tool in a multitude of fields, such as for example information theory and machine learning.
no code implementations • 12 Jul 2021 • Onur Günlü, Rafael F. Schaefer, H. Vincent Poor
A public ring oscillator (RO) output dataset is used to illustrate that a truncated Gaussian distribution can be fitted to transformed RO outputs that are inputs to uniform scalar quantizers such that reliability guarantees can be provided for each bit extracted from any PUF device under additive Gaussian noise components by eliminating a small subset of PUF outputs.
no code implementations • 17 Jun 2021 • Onur Günlü, Matthieu Bloch, Rafael F. Schaefer
We consider a distributed function computation problem in which parties observing noisy versions of a remote source facilitate the computation of a function of their observations at a fusion center through public communication.
no code implementations • 1 Jun 2021 • Rick Fritschek, Rafael F. Schaefer, Gerhard Wunder
The use of deep learning-based techniques for approximating secure encoding functions has attracted considerable interest in wireless communications due to impressive results obtained for general coding and decoding tasks for wireless communication systems.
no code implementations • 9 Feb 2021 • Muah Kim, Onur Günlü, Rafael F. Schaefer
We consider Gaussian mechanisms to preserve local differential privacy (LDP) of user data in the FL model with SGD.
no code implementations • 16 Dec 2020 • Onur Günlü, Rafael F. Schaefer
A physical unclonable function (PUF) is a promising solution for local security in digital devices and this review gives the most relevant summary for information theorists, coding theorists, and signal processing community members who are interested in optimal PUF constructions.
no code implementations • 20 Feb 2020 • Efe Bozkir, Onur Günlü, Wolfgang Fuhl, Rafael F. Schaefer, Enkelejda Kasneci
New generation head-mounted displays, such as VR and AR glasses, are coming into the market with already integrated eye tracking and are expected to enable novel ways of human-computer interaction in numerous applications.
1 code implementation • 7 Mar 2019 • Rick Fritschek, Rafael F. Schaefer, Gerhard Wunder
However, one of the drawbacks of current learning approaches is that a differentiable channel model is needed for the training of the underlying neural networks.