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🔍 elena grigorescu 📂 Engineering
Showing 7 results for "elena grigorescu" in Engineering
Engineering Preprint PDF DOI

3GPP NR V2X Mode 2d: Analysis of Distributed Scheduling for Groupcast using ns-3 5G LENA Simulator

Thomas Fehrenbach, Luis Omar Ortiz Abrego, Cornelius Hellge, Thomas Schierl, Jorg Ott · 2025

Vehicle-to-everything (V2X) communication is a key technology for enabling intelligent transportation systems (ITS) that can improve road safety, traffic efficiency, and environmental sustainability. …

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Engineering Preprint PDF DOI

HELENA: High-Efficiency Learning-based channel Estimation using dual Neural Attention

Miguel Camelo Botero, Esra Aycan Beyazit, Nina Slamnik-Krijestorac, Johann M. Marquez-Barja · 2025

Accurate channel estimation is critical for high-performance Orthogonal Frequency-Division Multiplexing systems such as 5G New Radio, particularly under low signal-to-noise ratio and stringent latency…

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Engineering Preprint PDF DOI

Spiking Neural Belief Propagation Decoder for LDPC Codes with Small Variable Node Degrees

Alexander von Bank, Eike-Manuel Edelmann, Jonathan Mandelbaum, Laurent Schmalen · 2024

Spiking neural networks (SNNs) promise energy-efficient data processing by imitating the event-based behavior of biological neurons. In previous work, we introduced the enlarge-likelihood-each-notable…

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Engineering Preprint PDF DOI

Towards Robust Family-Infant Audio Analysis Based on Unsupervised Pretraining of Wav2vec 2.0 on Large-Scale Unlabeled Family Audio

Jialu Li, Mark Hasegawa-Johnson, Nancy L. McElwain · 2023

To perform automatic family audio analysis, past studies have collected recordings using phone, video, or audio-only recording devices like LENA, investigated supervised learning methods, and used or …

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Engineering Preprint PDF DOI

Visualizations of Complex Sequences of Family-Infant Vocalizations Using Bag-of-Audio-Words Approach Based on Wav2vec 2.0 Features

Jialu Li, Mark Hasegawa-Johnson, Nancy L. McElwain · 2022

In the U.S., approximately 15-17% of children 2-8 years of age are estimated to have at least one diagnosed mental, behavioral or developmental disorder. However, such disorders often go undiagnosed, …

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Engineering Preprint PDF DOI

A Comparison Study on Infant-Parent Voice Diarization

Junzhe Zhu, Mark Hasegawa-Johnson, Nancy McElwain · 2020

We design a framework for studying prelinguistic child voicefrom 3 to 24 months based on state-of-the-art algorithms in di-arization. Our system consists of a time-invariant feature ex-tractor, a cont…

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Engineering Preprint PDF DOI

An open-source voice type classifier for child-centered daylong recordings

Marvin Lavechin, Ruben Bousbib, Herve Bredin, Emmanuel Dupoux, Alejandrina Cristia · 2020

Spontaneous conversations in real-world settings such as those found in child-centered recordings have been shown to be amongst the most challenging audio files to process. Nevertheless, building spee…

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