307 citations · 522 across the 41 of their papers we have counts for
46 papers
Secure Wireless Information Transfer and Energy Harvesting in HAPS-Based Network
Khaled Humadi, Gunes Karabulut-Kurt, Wessam Ajib +1
High-altitude platform station (HAPS) serves as a promising enabler for wide-area connectivity of low-power wireless devices, particularly in remote and underserved regions. Howeve…
Profit-Driven Pricing and SLA-Aware Reserve Sizing for Multi-Tenant Satellite O-RAN Services
Manobendu Sarker, Gunes Karabulut Kurt, Wael Jaafar
This paper studies a multi-tenant resource allocation problem in a satellite open radio access network (O-RAN) wholesale setting, where heterogeneous traffic classes share a time-v…
A User Centric Group Authentication Scheme for Secure Communication
Oylum Gerenli, Gunes Karabulut-Kurt, Enver Ozdemir
Group Authentication Schemes (GAS) are methodologies developed to verify the membership of multiple users simultaneously. These schemes enable the concurrent authentication of seve…
Connectivity-Aware Task Offloading for Remote Northern Regions: a Hybrid LEO-MEO Architecture
Mohammed Almekhlafi, Antoine Lesage-Landry, Gunes Karabulut Kurt
Arctic regions, such as northern Canada, face significant challenges in achieving consistent connectivity and low-latency computing services due to the sparse coverage of Low Earth…
Modeling the Doppler Shift in Cislunar Environment with Gaussian Mixture Models
Baris Donmez, Sebastien Loranger, Gunes Karabulut Kurt
This study investigates the RF-based Doppler shift distribution characterization of the Lunar South Pole (LSP) based inter-satellite link (ISL) in varying inclination. Doppler shif…
DSROQ: Dynamic Scheduling and Routing for QoE Management in LEO Satellite Networks
Dhiraj Bhattacharjee, Pablo G. Madoery, Abhishek Naik +4
The modern Internet supports diverse applications with heterogeneous quality of service (QoS) requirements. Low Earth orbit (LEO) satellite constellations offer a promising solutio…
Cyber Physical Awareness via Intent-Driven Threat Assessment: Enhanced Space Networks with Intershell Links
Selen Gecgel Cetin, Tolga Ovatman, Gunes Karabulut Kurt
This letter addresses essential aspects of threat assessment by proposing intent-driven threat models that incorporate both capabilities and intents. We propose a holistic framewor…
Space Shift Keying-Enabled ISAC for Efficient Debris Detection and Communication in LEO Satellite Networks
Gedeon Ghislain Nkwewo Ngoufo, Khaled Humadi, Elham Baladi +1
The proliferation of space debris in low Earth orbit (LEO) presents critical challenges for orbital safety, particularly for satellite constellations. Integrated sensing and commun…
Improving SAGIN Resilience to Jamming with Reconfigurable Intelligent Surfaces
Leila Marandi, Khaled Humadi, Gunes Karabulut Kurt +2
This study investigates the anti-jamming space-air-ground integrated network (SAGIN) scenario wherein a reconfigurable intelligent surface (RIS) is deployed on a fixed Unmanned Aer…
Open Sky, Open Threats: Replay Attacks in Space Launch and Re-entry Phases
Nesrine Benchoubane, Eray Guven, Gunes Karabulut Kurt
This paper examines the effects of replay attacks on the integrity of both uplink and downlink communications during critical phases of spacecraft communication. By combining softw…
Resilience Through Escalation: A Graph-Based PACE Architecture for Satellite Threat Response
Anouar Boumeftah, Sarah McKenzie-Picot, Peter Klimas +1
Modern satellite systems face increasing operational risks from jamming, cyberattacks, and electromagnetic disruptions in contested space environments. Traditional redundancy strat…
Temporal Spectrum Analysis for Multi-Constellation Space Domain Awareness
Mansour Naslcheraghi, Gunes Karabulut-Kurt
Space Domain Awareness (SDA) system has different major aspects including continues and robust awareness from the network that is crucial for an efficient control over all actors i…
Green Satellite Networks Using Segment Routing and Software-Defined Networking
Jintao Liang, Pablo G. Madoery, Chung-Horng Lung +2
This paper presents a comprehensive evaluation of network performance in software defined networking (SDN)-based low Earth orbit (LEO) satellite networks, focusing on the Telesat L…
Next-Gen Space-Based Surveillance: Blockchain for Trusted and Efficient Debris Tracking
Nesrine Benchoubane, Nida Fidan, Gunes Karabulut Kurt +1
The increasing congestion of Earth's orbit due to growing satellite deployments and space debris poses a significant challenge to sustainable space operations. Traditional space su…
Privacy-Preserving and Simultaneous Authentication in High-Density V2X Networks
Morteza Azmoudeh Afshar, Nesrine Benchoubane, Busra Cayoren +2
The rapid expansion of Vehicle-to-Everything (V2X) networks within the Internet of Vehicles (IoV) demands secure and efficient authentication to support high-speed, high-density an…
Securing Satellite Link Segment: A Secure-by-Component Design
Olfa Ben Yahia, William Ferguson, Sumit Chakravarty +4
The rapid evolution of communication technologies, compounded by recent geopolitical events such as the Viasat cyberattack in February 2022, has highlighted the urgent need for fas…
Federated Learning for UAV-Based Spectrum Sensing: Enhancing Accuracy Through SNR-Weighted Model Aggregation
Kürşat Tekbıyık, Güneş Karabulut Kurt, Antoine Lesage-Landry
The increasing demand for data usage in wireless communications requires using wider bands in the spectrum, especially for backhaul links. Yet, allocations in the spectrum for non-…
Cislunar Communication Performance and System Analysis with Uncharted Phenomena
Selen Gecgel Cetin, Angeles Vazquez-Castro, Gunes Karabulut Kurt
The Moon and its surrounding cislunar space have numerous unknowns, uncertainties, or partially charted phenomena that need to be investigated to determine the extent to which they…
Online Convex Optimization for On-Board Routing in High-Throughput Satellites
Olivier Bélanger, Jean-Luc Lupien, Olfa Ben Yahia +3
The rise in low Earth orbit (LEO) satellite Internet services has led to increasing demand, often exceeding available data rates and compromising the quality of service. While depl…
Next-Generation Satellite IoT Networks: A HAPS-Enabled Solution to Enhance Optical Data Transfer
Ethan Fettes, Pablo G. Madoery, Halim Yanikomeroglu +5
For decades, satellites have facilitated remote internet of things (IoT) services. However, the recent proliferation of increasingly capable sensors and a surge in the number deplo…
Distributed Massive MIMO System with Dynamic Clustering in LEO Satellite Networks
Khaled Humadi, Gunes Karabulut Kurt, Halim Yanikomeroglu
Distributed massive multiple-input multiple output (mMIMO) system for low earth orbit (LEO) satellite networks is introduced as a promising technique to provide broadband connectiv…
Secure and Robust Communications for Cislunar Space Networks
Selen Gecgel Cetin, Gunes Karabulut Kurt, Angeles Vazquez-Castro
There is no doubt that the Moon has become the center of interest for commercial and international actors. Over the past decade, the number of planned long-term missions has increa…
Measurement-Based Modeling of Short Range Terahertz Channels and Their Capacity Analysis
Erhan Karakoca, Hasan Nayir, Güneş Karabulut Kurt +1
In this work, extensive propagation characteristics of short range 240 to 300 GHz terahertz (THz) channels are mapped based on a measurement campaign conducted utilizing a novel, t…
Multi-State Inter-Satellite Channel Models
Eray Güven, Olfa Ben Yahia, Güneş Karabulut Kurt
The advancement in satellite networks (SatNets) offers vast opportunities for large-scale connectivity and flexibility. The intersection of inter-satellite communication (ISC) and…