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The robustness of Vision Language Models (VLMs) is commonly assessed through output-level invariance, implicitly assuming that stable predictions reflect stable multimodal processing. In this work, we argue that this assumption is…

Errors in realistic channels contain not only substitution errors, but synchronisation errors as well. Moreover, these errors are rarely statistically independent in nature. By extending on the idea of the Fritchman channel model, a novel…

Information Theory · Computer Science 2021-02-23 Shamin Achari , Daniel Glenn Holmes , Ling Cheng

We consider the problem of transmitting a source over an infinite-bandwidth additive white Gaussian noise channel with unknown noise level under an input energy constraint. We construct a universal scheme that uses modulo-lattice modulation…

Information Theory · Computer Science 2024-10-28 Omri Lev , Anatoly Khina

This paper centers around a multiple-input-multiple-output (MIMO) visible light communication (VLC) system, where an unmanned aerial vehicle (UAV) benefits from a light emitting diode (LED) array to serve photo-diode (PD)-equipped users for…

Large Language Models (LLMs) are prone to generating plausible yet incorrect responses, known as hallucinations. Effectively detecting hallucinations is therefore crucial for the safe deployment of LLMs. Recent research has linked…

Computation and Language · Computer Science 2026-03-03 Litian Liu , Reza Pourreza , Sunny Panchal , Apratim Bhattacharyya , Yubing Jian , Yao Qin , Roland Memisevic

The proliferation of mobile Internet and connected devices, offering a variety of services at different levels of performance, represents a major challenge for the fifth generation wireless networks and beyond. This requires a paradigm…

Information Theory · Computer Science 2017-04-26 Hanaa Marshoud , Sami Muhaidat , Paschalis C. Sofotasios , Sajjad Hussain , Muhammad Ali Imran , Bayan S. Sharif

Though visible light communication (VLC) systems are contained to a given room, ensuring their security amongst users in a room is essential. In this paper, the design of artificial noise (AN) to enhance physical layer security in VLC…

Information Theory · Computer Science 2022-11-14 Thanh V. Pham , Steve Hranilovic , Susumu Ishihara

Visible light communication (VLC) using light-emitting-diodes (LEDs) has been a popular research area recently. VLC can provide a practical solution for indoor positioning. In this paper, the impact of multipath reflections on indoor VLC…

Information Theory · Computer Science 2016-05-04 Wenjun Gu , Mohammadreza Aminikashani , Mohsen Kavehrad

The advent of the fifth-generation technology promises to bring about more vertical applications and emerging services that include vehicular networks and intelligent transportation systems (ITSs). To achieve their vision of real-time and…

Networking and Internet Architecture · Computer Science 2025-10-14 Pedro E. Gória Silva , Eduardo S. Lima , Jules M. Moualeu , Mohamed Korium , Pedro H. J. Nardelli

Indoor visible light communication (VLC) is a promising sixth-generation (6G) technology, as its directional and sensitive optical signals are naturally suited for integrated sensing and communication (ISAC). However, current research…

Systems and Control · Electrical Eng. & Systems 2025-11-27 Xinyan Xie , Xuesong Wang , Xin Lai , Yongheng Wen , Fengrui Yang , Haoyang He , Lai Zhang , Dong Zhao

Motivated by classical communications engineering, early works in molecular communication (MC) largely adopted established modeling and signal processing concepts from wireless electromagnetic communication systems. In the context of the…

Information Theory · Computer Science 2026-04-03 Timo Jakumeit , Lukas Brand , Josep M. Jornet , Robert Schober , Maximilian Schäfer , Sebastian Lotter

A novel dimming control scheme, termed as generalized dimming control (GDC), is proposed for visible light communication (VLC) systems. The proposed GDC scheme achieves dimming control by simultaneously adjusting the intensity of…

Information Theory · Computer Science 2020-04-22 Yang Yang , Congcong Wang , Chunyan Feng , Caili Guo , Julian Cheng , Zhimin Zeng

One of the primary challenges in short packet ultra-reliable and low-latency communications (URLLC) is to achieve reliable channel estimation and data detection while minimizing the impact on latency performance. Given the small packet size…

Information Theory · Computer Science 2024-08-27 Canjian Zheng , Fu-Chun Zheng , Jingjing Luo , Pengcheng Zhu , Xiaohu You , Daquan Feng

Optical Wireless Communication (OWC) is regarded as an auspicious communication approach that can outperform the existing wireless technology. It utilizes LED lights, whose subtle variation in radiant intensity generate a binary data…

Robotics · Computer Science 2022-05-10 Fadi Al-Turjman , Diletta Cacciagrano , Leonardo Mostarda , Mattia Paccamiccio , Zaib Ullah

Recent advances in Vision-Language Models (VLMs) have achieved state-of-the-art performance on numerous benchmark tasks. However, the use of internet-scale, often proprietary, pretraining corpora raises a critical concern for both…

Machine Learning · Computer Science 2026-02-03 Jaden Park , Mu Cai , Feng Yao , Jingbo Shang , Soochahn Lee , Yong Jae Lee

Real-world applications such as magnetic resonance imaging with multiple coils, multi-user communication, and diffuse optical tomography often assume a linear model where several sparse signals sharing common sparse supports are acquired by…

Information Theory · Computer Science 2018-10-17 Junan Zhu , Dror Baron

We introduce the variable coherence model (VCM) for simulating free-electron laser (FEL) pulses generated through self-amplified spontaneous emission. Building on the established partial coherence model of [T. Pfeifer et. al, Opt. Lett. 35,…

Optics · Physics 2026-04-23 Austin Bartunek , Nils H. Sommerfeld , Francois Mauger

As Visual Language Models (VLMs) become increasingly embedded in everyday applications, ensuring they can recognize and appropriately handle privacy-sensitive content is essential. We conduct a comprehensive evaluation of ten…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Laurens Samson , Nimrod Barazani , Sennay Ghebreab , Yuki M. Asano

In this paper the secure performance for the visible light communication (VLC) system with multiple eavesdroppers is studied. By considering the practical amplitude constraint instead of an average power constraint in the VLC system, the…

Signal Processing · Electrical Eng. & Systems 2019-10-17 Xiaodong Liu , Yuhao Wang , Fuhui Zhou , Zhenyu Deng , Rose Qingyang Hu

Distributed Volt-Var Control (VVC) is a widely used control mode of smart inverters. However, necessary VVC curve parameters are remotely communicated to the smart inverter, which opens doors for cyberattacks. If the VVC curves of an…

Systems and Control · Electrical Eng. & Systems 2023-09-20 Ahmad Mohammad Saber , Amr Youssef , Davor Svetinovic , Hatem Zeineldin , Ehab El-Saadany
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