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🔍 chris cummins 📂 Engineering
Showing 105 results for "chris cummins" in Engineering
Engineering Preprint PDF DOI

Trajectory-Based Optimization for Air Traffic Control in the Terminal Maneuvering Area

Yutian Pang, Daniel Delahaye, John-Paul Clarke · 2026

We present a trajectory-based optimization framework for arrival sequencing and scheduling in the terminal maneuvering area (TMA). Unlike node-link scheduling models that reduce trajectories to time-d…

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Engineering Preprint PDF DOI

Near-Field NLOS Localization via Position-Unknown HRIS:From Self-Localization to Target Positioning

Hua Chen, Linke Yu, Tuo Wu, Maged Elkashlan, Naofal Al-Dhahir, Merouane Debbah, K. C. Ho · 2026

Current reconfigurable intelligent surface (RIS)-aided near-field (NF) localization methods assume the RIS position is known a priori, and it has limited their practical applicability. This paper appl…

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Engineering Preprint PDF DOI

BER Analysis and Optimization for Continuous RIS-Enabled NOMA

Mahmoud AlaaEldin, Amy S. Inwood, Peter J. Smith, Michail Matthaiou · 2026

This letter investigates a novel uplink (UL) system that integrates power-domain non-orthogonal multiple access (PD-NOMA) with a continuous reconfigurable intelligent surface (CRIS). We analyze the ef…

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Engineering Preprint PDF DOI

Deep Reinforcement Learning for Hybrid RIS Assisted MIMO Communications

Phuong Nam Tran, Nhan Thanh Nguyen, Markku Juntti · 2026

Hybrid reconfigurable intelligent surfaces (HRIS) enhance wireless systems by combining passive reflection with active signal amplification. However, jointly optimizing the transmit beamforming with t…

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Engineering Preprint PDF DOI

Millimeter-Wave Radar Sensing of Wombat Respiration

Marina Murakami, Ryoko Iwase, Chiemi Iba, Daisuke Ogura, Takuya Sakamoto · 2025

This study demonstrates the feasibility of radar-based non-contact respiratory monitoring for wombats. Two measurement experiments were conducted in June and December 2024 using 79-GHz millimeter-wave…

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Engineering Preprint PDF DOI

Non-locally averaged pruned reassigned spectrograms: a tool for glottal pulse visualization and analysis

Gabriel J. Griswold, Mark A. Griswold · 2025

Reassigned spectrograms have shown advantages in precise formant measuring and inter-speaker differentiation. However, reassigned spectrograms suffer from their inability to visualize larger amounts o…

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Engineering Preprint PDF DOI

VLSM-Ensemble: Ensembling CLIP-based Vision-Language Models for Enhanced Medical Image Segmentation

Julia Dietlmeier, Oluwabukola Grace Adegboro, Vayangi Ganepola, Claudia Mazo, Noel E. O'Connor · 2025

Vision-language models and their adaptations to image segmentation tasks present enormous potential for producing highly accurate and interpretable results. However, implementations based on CLIP and …

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Engineering Preprint PDF DOI

CARIS: A Context-Adaptable Robot Interface System for Personalized and Scalable Human-Robot Interaction

Felipe Arias-Russi, Yuanchen Bai, Angelique Taylor · 2025

The human-robot interaction (HRI) field has traditionally used Wizard-of-Oz (WoZ) controlled robots to explore navigation, conversational dynamics, human-in-the-loop interactions, and more to explore …

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Engineering Preprint PDF DOI

Polynomial Closed Form Model for Ultra-Wideband Transmission Systems

Pierluigi Poggiolini, Yanchao Jiang, Yifeng Gao, Fabrizio Forghieri · 2025

Ultrafast and accurate physical layer models are essential for designing, optimizing and managing ultra-wideband optical transmission systems. We present a closed-form GN/EGN model, named Polynomial C…

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Engineering Preprint PDF DOI

Hybrid RISs for Simultaneous Tunable Reflections and Sensing

George C. Alexandropoulos, Nir Shlezinger, Ioannis Gavras, Haiyang Zhang · 2025

The concept of smart wireless environments envisions dynamic programmable propagation of information-bearing signals through the deployment of Reconfigurable Intelligent Surfaces (RISs). Typical RIS i…

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Engineering Preprint PDF DOI

Multi-Domain FeFET-Based Pixel for In-Sensor Multiply-and-Accumulate Operations

Md Rahatul Islam Udoy, Wantong Li, Kai Ni, Ahmedullah Aziz · 2025

This paper presents an FeFET-based active pixel sensor that performs in-sensor multiply-and-accumulate (MAC) operations by leveraging the multi-domain polarization states of ferroelectric layers. The …

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Engineering Preprint PDF DOI

Unified Semi-Supervised Pipeline for Automatic Speech Recognition

Nune Tadevosyan, Nikolay Karpov, Andrei Andrusenko, Vitaly Lavrukhin, Ante Jukic · 2025

Automatic Speech Recognition has been a longstanding research area, with substantial efforts dedicated to integrating semi-supervised learning due to the scarcity of labeled datasets. However, most pr…

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Engineering Preprint PDF DOI

SongEval: A Benchmark Dataset for Song Aesthetics Evaluation

Jixun Yao, Guobin Ma, Huixin Xue, Huakang Chen, Chunbo Hao, Yuepeng Jiang, Haohe Liu, Ruibin Yuan, Jin Xu, Wei Xue, Hao Liu, Lei Xie · 2025

Aesthetics serve as an implicit and important criterion in song generation tasks that reflect human perception beyond objective metrics. However, evaluating the aesthetics of generated songs remains a…

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Engineering Preprint PDF DOI

Communications-Centric Secure ISAC with Hybrid Reconfigurable Intelligent Surfaces

Ioannis Gavras, George C. Alexandropoulos · 2025

Hybrid reconfigurable intelligent surfaces (HRISs) constitute an emerging paradigm of metasurfaces that empowers the concept of smart wireless environments, inherently supporting simultaneously commun…

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Engineering Preprint PDF DOI

Tracking-Aided Multi-User MIMO Communications with Hybrid Reconfigurable Intelligent Surfaces

Ioannis Gavras, George C. Alexandropoulos · 2025

Hybrid Reconfigurable Intelligent Surfaces (HRISs) constitute a new paradigm that redefines smart metasurfaces, not only offering tunable reflections of incoming signals, but also incorporating signal…

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Engineering Preprint PDF DOI

The Iris File Extension

Ryan Erik Landvater, Michael David Olp, Mustafa Yousif, Ulysses Balis · 2025

A modern digital pathology vendor-agnostic binary slide format specifically targeting the unmet need of efficient real-time transfer and display has not yet been established. The growing adoption of d…

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Engineering Preprint PDF DOI

Physical Layer Authentication With Colored RIS in Visible Light Communications

Besra Cetindere Vela, Serkan Vela, Stefano Tomasin · 2025

We study a visible light communication (VLC) system that employs a colored reconfigurable intelligent surface (CRIS) based on dichroic mirrors that reflect light at tunable frequencies. A verifier can…

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Engineering Preprint PDF DOI

Data Assimilation-based Simultaneous Phase-Resolved Ocean Wave and Ship Motion Forecast

Guangyao Wang, Yulin Pan · 2025

This paper presents a data-assimilation (DA)-based approach to forecast the phase-resolved wave evolution process and ship motion, which is developed by coupling the high-order spectral method (HOS), …

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Engineering Preprint PDF DOI

Multi-Disease-Aware Training Strategy for Cardiac MR Image Segmentation

Hong Zheng, Yucheng Chen, Nan Mu, Xiaoning Li · 2025

Accurate segmentation of the ventricles from cardiac magnetic resonance images (CMRIs) is crucial for enhancing the diagnosis and analysis of heart conditions. Deep learning-based segmentation methods…

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Engineering Preprint PDF DOI

Green Integration of Sensing, Communication, and Power Transfer via STAR-RIS

Vaibhav Kumar, Marwa Chafii · 2025

The upcoming sixth-generation (6G) wireless standard is anticipated to support a variety of applications that will require a seamless integration of sensing and communication services in a single netw…

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