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Space Vehicle (SV) life span depends on its station keeping capability. Station keeping is the ability of the vehicle to maintain position and orientation. Due to external perturbations, the trajectory of the SV derives from the ideal…

Signal Processing · Electrical Eng. & Systems 2018-09-27 Arnaud Dion , Vincent Calmettes , Michel Bousquet , Emmanuel Boutillon

Securing satellite communication networks is imperative in the rapidly evolving landscape of advanced telecommunications, particularly in the context of 6G advancements. This paper establishes a secure low earth orbit (LEO) satellite…

Signal Processing · Electrical Eng. & Systems 2023-10-05 Hadil Otay , Khaled Humadi , Gunes Karabulut Kurt

Prior research has demonstrated that global positioning system (GPS) spoofing attacks on phasor measurement units (PMUs) can cripple power system operation. This paper provides an experimental evidence of the feasibility of such an attack…

Cryptography and Security · Computer Science 2021-10-08 Fakhri Saadedeen , Anamitra Pal

In this paper, we investigate opportunistic relay and jammer cooperation schemes in multiple-input multiple-output (MIMO) buffer-aided relay networks. The network consists of one source, an arbitrary number of relay nodes, legitimate users…

Information Theory · Computer Science 2015-12-24 X. Lu , R. C. de Lamare

The global navigation satellite system (GNSS) continues to evolve in order to meet the demands of emerging applications such as autonomous driving and smart environmental monitoring. However, these advancements are accompanied by a rise in…

Signal Processing · Electrical Eng. & Systems 2025-11-03 Leatile Marata , Mariona Jaramillo-Civill , Tales Imbiriba , Petri Välisuo , Heidi Kuusniemi , Elena Simona Lohan , Pau Closas

Over the past decade, smartphones have become the point of convergence for many applications and services. There is a growing trend in which traditional smart-card based services like banking, transport and access control are being…

Cryptography and Security · Computer Science 2016-05-03 Iakovos Gurulian , Carlton Shepherd , Konstantinos Markantonakis , Raja Naeem Akram , Keith Mayes

In this paper, we propose a dual-hop RF (Radio-Frequency)/FSO (Free-Space Optical) system with multiple relays employing the Decode-and-Forward (DF) and Amplify-and-Forward (AF) with a Fixed Gain (FG) relaying scheme. The RF channels are…

Signal Processing · Electrical Eng. & Systems 2019-02-11 Elyes Balti , Mohsen Guizani , Bechir Hamdaoui , Bassem Khalfi

A novel time synchronization attack (TSA) on wide area monitoring systems in smart grid has been identified in the first part of this paper. A cross layer detection mechanism is proposed to combat TSA in part II of this paper. In the…

Cryptography and Security · Computer Science 2012-04-03 Zhenghao Zhang , Matthew Trinkle , Aleksandar D. Dimitrovski , Husheng Li

High-level synthesis (HLS) tools have provided significant productivity enhancements to the design flow of digital systems in recent years, resulting in highly-optimized circuits, in terms of area and latency. Given the evolution of…

Cryptography and Security · Computer Science 2023-12-14 Amalia Artemis Koufopoulou , Athanasios Papadimitriou , Aggelos Pikrakis , Mihalis Psarakis , David Hely

Recent studies have revealed that GNNs are vulnerable to adversarial attacks. To defend against such attacks, robust graph structure refinement (GSR) methods aim at minimizing the effect of adversarial edges based on node features, graph…

Machine Learning · Computer Science 2024-03-05 Yeonjun In , Kanghoon Yoon , Kibum Kim , Kijung Shin , Chanyoung Park

Graph Neural Networks (GNNs) have established themselves as a key component in addressing diverse graph-based tasks. Despite their notable successes, GNNs remain susceptible to input perturbations in the form of adversarial attacks. This…

Machine Learning · Computer Science 2024-09-13 Moshe Eliasof , Davide Murari , Ferdia Sherry , Carola-Bibiane Schönlieb

Owing to the vulnerability of relay-assisted and device-to-device (D2D) communications, improving wireless security from a physical layer signal processing perspective is attracting increasing interest. Hence we address the problem of…

Information Theory · Computer Science 2016-06-24 Jiaxin Yang , Qiang Li , Benoit Champagne , Yulong Zou , Lajos Hanzo

Reconfigurable intelligent surface (RIS) technology enhances wireless communication performance, but it also introduces new vulnerabilities that can be exploited by adversaries. This paper investigates channel reciprocity attack (CRACK)…

Signal Processing · Electrical Eng. & Systems 2025-09-16 Haoyu Wang , Jiawei Hu , Jiaqi Xu , Ying Ju , A. Lee Swindlehurst

Network Slices (NSs) are virtual networks operating over a shared physical infrastructure, each designed to meet specific application requirements while maintaining consistent Quality of Service (QoS). In Fifth Generation (5G) networks,…

Machine Learning · Computer Science 2025-10-03 Ricardo Misael Ayala Molina , Hyame Assem Alameddine , Makan Pourzandi , Chadi Assi

Deep learning models achieve impressive performance for skeleton-based human action recognition. However, the robustness of these models to adversarial attacks remains largely unexplored due to their complex spatio-temporal nature that must…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Jian Liu , Naveed Akhtar , Ajmal Mian

Graph neural networks (GNNs) have been widely used in many real applications, and recent studies have revealed their vulnerabilities against topology attacks. To address this issue, existing efforts have mainly been dedicated to improving…

Machine Learning · Computer Science 2022-04-27 Senrong Xu , Yuan Yao , Liangyue Li , Wei Yang , Feng Xu , Hanghang Tong

Security of Wireless sensor network (WSN) becomes a very important issue with the rapid development of WSN that is vulnerable to a wide range of attacks due to deployment in the hostile environment and having limited resources. Intrusion…

Networking and Internet Architecture · Computer Science 2012-03-02 Tapalina Bhattasali , Rituparna Chaki

The successful emergence of deep learning (DL) in wireless system applications has raised concerns about new security-related challenges. One such security challenge is adversarial attacks. Although there has been much work demonstrating…

Machine Learning · Computer Science 2022-06-15 B. R. Manoj , Meysam Sadeghi , Erik G. Larsson

Reconfigurable Intelligent Surfaces (RIS) have emerged as a transformative technology in wireless communication, enabling dynamic control over signal propagation. This paper tackles the challenge of mitigating Channel State Information…

Signal Processing · Electrical Eng. & Systems 2025-09-23 Mahdi Shamsi , Hadi Zayyani , Farokh Marvasti

Distance bounding protocols are security countermeasures designed to thwart relay attacks. Such attacks consist in relaying messages exchanged between two parties, making them believe they communicate directly with each other. Although…

Cryptography and Security · Computer Science 2015-03-17 Gildas Avoine , Sjouke Mauw , Rolando Trujillo-Rasua