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In an underwater scene, wavelength-dependent light absorption and scattering degrade the visibility of images, causing low contrast and distorted color casts. To address this problem, we propose a convolutional neural network based image…

Computer Vision and Pattern Recognition · Computer Science 2018-07-11 Saeed Anwar , Chongyi Li , Fatih Porikli

Underwater Wireless Sensor Networks are significantly different from terrestrial sensor networks due to peculiar characteristics of low bandwidth, high latency, limited energy, node float mobility and high error probability. These features…

Networking and Internet Architecture · Computer Science 2013-06-06 S. Ahmed , I. U. Khan , M. B. Rasheed , M. Ilahi , R. D. Khan , S. H. Bouk , N. Javaid

Typical magnetic induction (MI) communication is commonly considered a secure underwater wireless communication (UWC) technology due to its non-audible and non-visible nature compared to acoustic and optical UWC technologies. However,…

Cryptography and Security · Computer Science 2025-05-08 Muhammad Muzzammil , Waqas Aman , Irfan Ullah , Shang Zhigang , Saif Al-Kuwari , Zhou Tian , Marwa Qaraqe

Deep learning is a potential paradigm changer for the design of wireless communications systems (WCS), from conventional handcrafted schemes based on sophisticated mathematical models with assumptions to autonomous schemes based on the…

Information Theory · Computer Science 2018-08-08 Woongsup Lee , Ohyun Jo , Minhoe Kim

Underwater target tracking technology plays a pivotal role in marine resource exploration, environmental monitoring, and national defense security. Given that acoustic waves represent an effective medium for long-distance transmission in…

Inspired by recent theoretical arguments, physics-informed echo state network (ESN) is discussed on the attempt to train a reservoir model absolutely in physics-informed manner. As the plainest work on such a purpose, an ODE (ordinary…

Machine Learning · Computer Science 2020-11-16 Dong Keun Oh

Physical-layer network coding (PNC) can increase end-to-end throughput in bi-directional multi-hop underwater acoustic (UWA) networks. However, multipath delay spread and Doppler-induced inter-carrier interference (ICI) in UWA channels can…

Networking and Internet Architecture · Computer Science 2026-04-24 Gewei Zhang , Deqing Wang , Lizhao You , Xiangming Cai , Liqun Fu

Since its inception, underwater digital acoustic communication has required custom hardware that neither has the economies of scale nor is pervasive. We present the first acoustic system that brings underwater messaging capabilities to…

Networking and Internet Architecture · Computer Science 2022-08-24 Tuochao Chen , Justin Chan , Shyamnath Gollakota

The rapidity and low power consumption of superconducting electronics makes them an ideal substrate for physical reservoir computing, which commandeers the computational power inherent to the evolution of a dynamical system for the purposes…

Disruption Tolerant Networks (DTNs) are employed in applications where the network is likely to be disrupted due to environmental conditions or where the network topology makes it impossible to find a direct route from the sender to the…

Networking and Internet Architecture · Computer Science 2019-05-13 Arnav Dhamija

Reservoir computing is a novel machine learning algorithm that uses a nonlinear dynamical system to efficiently learn complex temporal patterns from data. The objective of this thesis is to investigate the principles of reservoir computing…

Quantum Physics · Physics 2023-10-12 Laia Domingo

Machine learning has become a fundamental approach for modeling, prediction, and control, enabling systems to learn from data and perform complex tasks. Reservoir computing is a machine learning tool that leverages high-dimensional…

Systems and Control · Electrical Eng. & Systems 2026-05-12 Sahand Tangerami , Nicholas A. Mecholsky , Francesco Sorrentino

Efficient localization in underwater sensor networks faces challenges due to limited bandwidth, energy constraints, and hardware complexity. Traditional systems separate sensing and communication, often resulting in inefficient resource…

Signal Processing · Electrical Eng. & Systems 2025-12-02 Ashwani Koul , Gustaf Hendeby , Isaac Skog

In this paper, we model the multi-layer vertical underwater link as a cascaded channel and unify the performance analysis for the underwater optical communication (UWOC) system using generalized Gamma (GG), exponential GG (EGG),…

Information Theory · Computer Science 2022-03-30 Ziyaur Rahman , Neel Vipulbhai Tailor , S. M. Zafaruddin , V. K. Chaubey

Underwater wireless communications face significant challenges due to propagation constraints, limiting the effectiveness of traditional radio and optical technologies. Long-range acoustic communications support distances up to a few…

Networking and Internet Architecture · Computer Science 2025-07-01 João Pedro Loureiro , Patrícia Delgado , Tomás Feliciano Ribeiro , Filipe B. Teixeira , Rui Campos

Underwater Acoustic (UWA) networks are vital for remote sensing and ocean exploration but face inherent challenges such as limited bandwidth, long propagation delays, and highly dynamic channels. These constraints hinder real-time…

Networking and Internet Architecture · Computer Science 2026-03-24 Fabio Busacca , Andrea Panebianco , Yin Sun

Background/introduction: Cross-Validation (CV) is still uncommon in time series modeling. Echo State Networks (ESNs), as a prime example of Reservoir Computing (RC) models, are known for their fast and precise one-shot learning, that often…

Machine Learning · Computer Science 2021-03-05 Mantas Lukoševičius , Arnas Uselis

This paper provides an overview of how and why acoustic waves are important for underwater communication when compared with radio and optical waves, underwater acoustic channel, it's characteristics and model. Also about the underwater…

Signal Processing · Electrical Eng. & Systems 2021-11-23 Lokesh Bommisetty , Samskruthi Gaddam , Nomula Prakash Reddy , Shaik Basharath , Bharath Are

Reservoir Computing is a class of simple yet efficient Recurrent Neural Networks where internal weights are fixed at random and only a linear output layer is trained. In the large size limit, such random neural networks have a deep…

Machine Learning · Statistics 2021-02-18 Jonathan Dong , Ruben Ohana , Mushegh Rafayelyan , Florent Krzakala

Data hiding is essential for secure communication across digital media, and recent advances in Deep Neural Networks (DNNs) provide enhanced methods for embedding secret information effectively. However, previous audio hiding methods often…

Sound · Computer Science 2025-10-06 Wei Fan , Kejiang Chen , Xiangkun Wang , Weiming Zhang , Nenghai Yu