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We propose a generalized sampling framework for stochastic graph signals. Stochastic graph signals are characterized by graph wide sense stationarity (GWSS) which is an extension of wide sense stationarity (WSS) for standard time-domain…

Signal Processing · Electrical Eng. & Systems 2023-05-17 Junya Hara , Yuichi Tanaka , Yonina C. Eldar

Incomplete satellite-based precipitation presents a significant challenge in global monitoring. For example, the Global Satellite Mapping of Precipitation (GSMaP) from JAXA suffers from substantial missing regions due to the orbital…

Machine Learning · Computer Science 2025-07-29 Daiko Kishikawa , Yuka Muto , Shunji Kotsuki

Remote sensing (RS) image-text retrieval faces significant challenges in real-world datasets due to the presence of Pseudo-Matched Pairs (PMPs), semantically mismatched or weakly aligned image-text pairs, which hinder the learning of…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Pengxiang Ouyang , Qing Ma , Zheng Wang , Cong Bai

In this work, we investigate the physical layer security of a jamming-based underlay cognitive hybrid satellite-terrestrial network {consisting of a} radio frequency link at the first hop and an optical feeder at the second hop.…

Information Theory · Computer Science 2020-09-30 Mounia Bouabdellah , Faissal El Bouanani

Aerial reconfigurable intelligent surfaces (ARIS), deployed on unmanned aerial vehicles (UAVs), could enhance anti-jamming communication performance by dynamically configuring channel conditions and establishing reliable air-ground links.…

Information Theory · Computer Science 2025-09-15 Junshan Luo , Shilian Wang , Boxiang He

Ordinary differential equation (ODE)-based diffusion models enable deterministic image synthesis, establishing a reversible mapping suitable for generative steganography. While prevailing methods strictly adhere to a standard normal prior,…

Cryptography and Security · Computer Science 2025-12-16 Yuhua Xu , Wei Sun , Chengpei Tang , Jiaxing Lu , Jingying Zhou , Chen Gu

The Synchronization Signal Block (SSB) is a fundamental component of the 5G New Radio (NR) air interface, crucial for the initial access procedure of Connected and Automated Vehicles (CAVs), and serves several key purposes in the network's…

Signal Processing · Electrical Eng. & Systems 2025-09-30 Ghazal Asemian , Mohammadreza Amini , Burak Kantarci , Melike Erol-Kantarci

Simultaneous Transmitting and Reflecting Reconfigurable Intelligent Surfaces (STAR-RISs) are being explored for sixth-generation (6G) wireless networks. A promising configuration for their deployment is within cell-free massive…

Information Theory · Computer Science 2025-10-10 Jun Qian , Ross Murch , Khaled B. Letaief

Joint-Embedding Predictive Architectures (JEPAs) provide a simpleframework for learning world models by predicting future latent representations.However, JEPA training is subject to a bias-variance tradeoff.Without sufficient structural…

Machine Learning · Computer Science 2026-05-12 Kai Zhao , Dongliang Nie , Yuchen Lin , Zhehan Luo , Yixiao Gu , Deng-Ping Fan , Dan Zeng

Radar jamming suppression, particularly against mainlobe jamming, has become a critical focus in modern radar systems. This article investigates advanced mainlobe jamming suppression techniques utilizing a novel multiple-input…

Signal Processing · Electrical Eng. & Systems 2025-05-15 Huake Wang , Bairui Cai , Guisheng Liao

The current state of the art on jamming detection relies on link-layer metrics. A few examples are the bit-error-rate (BER), the packet delivery ratio, the throughput, and the increase in the signal-to-noise ratio (SNR). As a result, these…

Cryptography and Security · Computer Science 2023-12-13 Savio Sciancalepore , Fabrice Kusters , Nada Khaled Abdelhadi , Gabriele Oligeri

In standard implementations of distributed secondary control for DC MicroGrids (MGs), the exchange of local measurements among neighboring control agents is enabled via off-the-shelf wireless solutions, such as IEEE 802.11. However, Denial…

Information Theory · Computer Science 2016-12-23 Pietro Danzi , Marko Angjelichinoski , Čedomir Stefanović , Petar Popovski

With the introduction of Navigation Message Authentication (NMA), future Global Navigation Satellite Systems (GNSSs) prevent spoofing by simulation, i.e., the generation of forged satellite signals based on public information. However,…

Cryptography and Security · Computer Science 2022-02-24 M. Lenhart , M. Spanghero , P. Papadimitratos

The expanding use of Unmanned Aerial Vehicles (UAVs) in vital areas like traffic management, surveillance, and environmental monitoring highlights the need for robust communication and navigation systems. Particularly vulnerable are Global…

Signal Processing · Electrical Eng. & Systems 2024-08-26 Ziqiang Ye , Yulan Gao , Xinyue Liu , Yue Xiao , Ming Xiao , Saviour Zammit

Temporal Video Grounding (TVG) aims to localize temporal moments in an untrimmed video that semantically correspond to given natural language queries. Recently, Graph Convolutional Networks (GCN) have been widely adopted in TVG to model…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Zhanjie Hu , Bolin Zhang , Jianhua Wang , Jianbo Zheng , Chenchen Yan , Takahiro Komamizu , Ichiro Ide , Jiangbo Qian

Grant-free random access is a promising protocol to support massive access in beyond fifth-generation (B5G) cellular Internet-of-Things (IoT) with sporadic traffic. Specifically, in each coherence interval, the base station (BS) performs…

Information Theory · Computer Science 2020-02-19 Xiaodan Shao , Xiaoming Chen , Rundong Jia

This paper addresses the challenge of co-channel interference and intentional jamming in low-altitude air-ground communications. Since conventional fixed-position antenna (FPA) systems lack spatial adaptability to dynamically balance signal…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Yifan Guo , Junshan Luo , Fanggang Wang , Haiyang Ding , Shilian Wang , Zhenhai Xu

Malicious jamming presents a pervasive threat to the secure communications, where the challenge becomes increasingly severe due to the growing capability of the jammer allowing the adaptation to legitimate transmissions. This paper…

Information Theory · Computer Science 2026-02-23 Xiao Tang , Zhen Ma , Limeng Dong , Yichen Wang , Qinghe Du , Dusit Niyato , Zhu Han

Wireless jamming attacks have plagued wireless communication systems and will continue to do so going forward with technological advances. These attacks fall under the category of Electronic Warfare (EW), a continuously growing area in both…

Networking and Internet Architecture · Computer Science 2023-01-24 Clifton Paul Robinson , Leonardo Bonati , Tara Van Nieuwstadt , Teddy Reiss , Pedram Johari , Michele Polese , Hieu Nguyen , Curtis Watson , Tommaso Melodia

Geospatial data has been transformative for the monitoring of the Earth, yet, as in the case of (geo)physical monitoring, the measurements can have variable spatial and temporal sampling and may be associated with a significant level of…

Machine Learning · Computer Science 2024-05-07 Giuseppe Costantino , Sophie Giffard-Roisin , Mauro Dalla Mura , Anne Socquet