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Suppressing the inter-carrier interference (ICI) is crucial for differentially coherent detection in underwater acoustic (UWA) orthogonal frequency division multiplexing (OFDM) systems due to the fact that the UWA channel is inherently…

Information Theory · Computer Science 2021-03-09 Yunlong Huang , Yuzhou Li

Linear chirp-based underwater acoustic communication has been widely used due to its reliability and long-range transmission capability. However, unlike the counterpart chirp technology in wireless -- LoRa, its throughput is severely…

Signal Processing · Electrical Eng. & Systems 2023-11-30 Wenjun Xie , Enqi Zhang , Lizhao You , Deqing Wang , Zhaorui Wang , Liqun Fu

High amplitude impulsive noise (IN) occurrence over power line channels severely degrades the performance of Orthogonal Frequency Division Multiplexing (OFDM)systems. One of the simplest methods to reduce IN is to precede the OFDM…

Signal Processing · Electrical Eng. & Systems 2018-07-18 Ferheen Ayaz , Khaled Rabie , Bamidele Adebisi

This paper describes recursive algorithms for state estimation of linear dynamical systems when measurements are noisy with unknown bias and/or outliers. For situations with noisy and biased measurements, algorithms are proposed that…

Systems and Control · Electrical Eng. & Systems 2025-03-11 Krishan Mohan Nagpal

The performance of laser-based active sensing has been severely limited by two types of noise: electrical noise, stemming from elements; optical noise, laser jamming from an eavesdropper and background from environment. Conventional methods…

Increasing levels of anthropogenic noise from ships contribute significantly to underwater sound pollution, posing risks to marine ecosystems. This makes monitoring crucial to understand and quantify the impact of the ship radiated noise.…

Machine Learning · Computer Science 2026-01-14 Hilde I. Hummel , Sandjai Bhulai , Rob D. van der Mei , Burooj Ghani

We propose an orthogonal chirp waveform design for underwater acoustic (UW-A) communications and analyze the cross-correlation characteristics of orthogonal chirp waveforms in coherent and non-coherent detections. We consider information…

Signal Processing · Electrical Eng. & Systems 2018-03-09 Song-Wen Huang , Dimitris A. Pados

We propose a novel receiver for orthogonal frequency division multiplexing (OFDM) transmissions in impulsive noise environments. Impulsive noise arises in many modern wireless and wireline communication systems, such as Wi-Fi and powerline…

Information Theory · Computer Science 2015-06-16 Marcel Nassar , Philip Schniter , Brian L. Evans

This paper proposes a pitch control strategy to mitigate the underwater acoustic footprint of offshore wind turbines, a measure that will soon become necessary to minimize impacts on marine life, which rely on sound for communication,…

Systems and Control · Electrical Eng. & Systems 2025-10-20 Martín de Frutos , Laura Botero-Bolívar , Esteban Ferrer

This paper investigates multiuser interference (MUI) cancellation for millimeter-wave (mmWave) beamforming in communication systems. We propose a linear algorithm, termed iterative dual orthogonal projections (DOP), which alternates between…

Signal Processing · Electrical Eng. & Systems 2026-03-16 Jiazhe Li , Heng Dong , Nicolò Decarli , Francesco Guidi , Anna Guerra , Alessandro Bazzi , Zhuoming Li

The designing of efficient signal detectors is important and yet challenge for orthogonal time frequency space (OTFS) systems in high-mobility scenarios. In this letter, we develop an efficient message feedback interference cancellation…

Information Theory · Computer Science 2024-01-08 Xiangxiang Li , Haiyan Wang , Yao Ge , Xiaohong Shen , Jiarui Zhao

The unscented Kalman filter is an algorithm capable of handling nonlinear scenarios. Uncertainty in process noise covariance may decrease the filter estimation performance or even lead to its divergence. Therefore, it is important to adjust…

Robotics · Computer Science 2026-03-03 Amit Levy , Itzik Klein

In this paper, we consider an eavesdropping attack on a multi-hop, UnderWater Acoustic Sensor Network (UWASN) that consists of $M+1$ underwater sensors which report their sensed data via Orthogonal Frequency Division Multiplexing (OFDM)…

Information Theory · Computer Science 2020-07-21 Waqas Aman , M. Mahboob Ur Rahman , Zeeshan Haider , Junaid Qadir , M. Wasim Nawaz , Guftaar Ahmad Sardar Sidhu

Non-orthogonal multiple access (NOMA) was recently proposed as a viable technology that can potentially provide the spectral efficiency, low latency, and massive connectivity requirements of future radio networks. In this context, numerous…

Signal Processing · Electrical Eng. & Systems 2020-01-07 Bassant Selim , Md Sahabul Alam , Georges Kaddoum , Basile L. Agba

In underwater acoustic (UWA) random access communication networks with multiple users and data packet transmissions, the packet collisions are the main cause of the network performance degradation. The aim of this paper is to investigate…

Signal Processing · Electrical Eng. & Systems 2025-01-10 Yuriy Zakharov , Lu Shen , Benjamin Henson , Nils Morozs , Paul D. Mitchell

Considering a common case where measurements are obtained from independent sensors, we present a novel outlier-robust filter for nonlinear dynamical systems in this work. The proposed method is devised by modifying the measurement model and…

Systems and Control · Electrical Eng. & Systems 2022-01-26 Aamir Hussain Chughtai , Muhammad Tahir , Momin Uppal

Integrated sensing and communication (ISAC) is a key enabling technique for future wireless networks owing to its efficient hardware and spectrum utilization. In this paper, we focus on dual-functional waveform design for a multi-input…

Signal Processing · Electrical Eng. & Systems 2024-06-26 Peishi Li , Ming Li , Rang Liu , Qian Liu , A. Lee Swindlehurst

The accuracy of machine learning interatomic potentials suffers from reference data that contains numerical noise. Often originating from unconverged or inconsistent electronic-structure calculations, this noise is challenging to identify.…

Machine Learning · Statistics 2026-02-10 Terry C. W. Lam , Niamh O'Neill , Christoph Schran , Lars L. Schaaf

Due to the limited available bandwidth and dynamic channel, data rates are extremely limited in underwater acoustic (UWA) communications. Addressing this concern, in-band fullduplex (IBFD) has the potential to double the efficiency in a…

Signal Processing · Electrical Eng. & Systems 2020-05-25 Mohammad Towliat , Zheng Guo , Leonard J. Cimini , Xiang-Gen Xia , Aijun Song

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