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Teams of cooperating autonomous underwater vehicles (AUVs) rely on acoustic communication for coordination, yet this communication medium is constrained by limited range, multi-path effects, and low bandwidth. One way to address the…

Robotics · Computer Science 2025-11-20 Yifei Gao , Hans J. He , Daniel J. Stilwell , James McMahon

Locating mobile devices precisely in indoor scenarios is a challenging task because of the signal diffraction and reflection in complicated environments. One vital cause deteriorating the localization performance is the inevitable power…

Signal Processing · Electrical Eng. & Systems 2022-12-05 Mengyuan Xu , Mingqing Liu , Qingwei Jiang , Wen Fang , Qingwen Liu , Shengli Zhou

When dedicated positioning systems, such as GPS, are unavailable, a mobile device has no choice but to fall back on its cellular network for localization. Due to random variations in the channel conditions to its surrounding base stations…

Information Theory · Computer Science 2015-10-27 Javier Schloemann , Harpreet S. Dhillon , R. Michael Buehrer

The main motivation for Automatic Speech Recognition (ASR) is efficient interfaces to computers, and for the interfaces to be natural and truly useful, it should provide coverage for a large group of users. The purpose of these tasks is to…

Computation and Language · Computer Science 2013-03-25 Urmila Shrawankar , VM Thakare

Recent advancements in quadruped robot research have significantly improved their ability to traverse complex and unstructured outdoor environments. However, the issue of noise generated during locomotion is generally overlooked, which is…

Robotics · Computer Science 2025-07-01 Zhanxiang Cao , Buqing Nie , Yang Zhang , Yue Gao

In this paper, we present an acoustic localization system for multiple devices. In contrast to systems which localise a device relative to one or several anchor points, we focus on the joint localisation of several devices relative to each…

Networking and Internet Architecture · Computer Science 2015-12-17 Seyed-Mohsen Moosavi-Dezfooli , Yvonne-Anne Pignolet , Dacfey Dzung

This paper explores high-altitude platform station (HAPS) systems enabled by integrated sensing and communication (ISAC), in which a HAPS simultaneously transmits communication signals and synthetic aperture radar (SAR) imaging signals to…

Signal Processing · Electrical Eng. & Systems 2025-12-04 Xue Zhang , Bang Huang , Mohamed-Slim Alouini

Robust localization in a given map is a crucial component of most autonomous robots. In this paper, we address the problem of localizing in an indoor environment that changes and where prominent structures have no correspondence in the map…

The integration of sensing and communication enables wireless communication systems to serve environment-aware applications. In this paper, we propose to leverage sensing to enhance physical layer security (PLS) in multiuser communication…

Information Theory · Computer Science 2023-12-27 Dongfang Xu , Yiming Xu , Zhiqiang Wei , Shenghui Song , Derrick Wing Kwan Ng

The deployment of machine listening algorithms in real-life applications is often impeded by a domain shift caused for instance by different microphone characteristics. In this paper, we propose a novel domain adaptation strategy based on…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-27 Jakob Abeßer , Meinard Müller

Aerial navigation in GPS-denied, indoor environments, is still an open challenge. Drones can perceive the environment from a richer set of viewpoints, while having more stringent compute and energy constraints than other autonomous…

Robotics · Computer Science 2021-06-18 Ni Wang , Ozan Catal , Tim Verbelen , Matthias Hartmann , Bart Dhoedt

Robotic and animal mapping systems share many of the same objectives and challenges, but differ in one key aspect: where much of the research in robotic mapping has focused on solving the data association problem, the grid cell neurons…

Computer Vision and Pattern Recognition · Computer Science 2018-10-24 Huu Le , Michael Milford

Indoor Positioning Systems (IPSs) hold significant potential for enhancing visitor experiences in cultural heritage institutions. By enabling personalized navigation, efficient artifact organization, and better interaction with exhibits,…

Speaker localization in a reverberant environment is a fundamental problem in audio signal processing. Many solutions have been developed to tackle this problem. However, previous algorithms typically assume a stationary environment in…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-29 Daniel A. Mitchell , Boaz Rafaely

In this letter, we investigate the design of multiple reconfigurable intelligent sensing surfaces (RISSs) that enhance both communication and sensing tasks. An RISS incorporates additional active elements tailored to improve sensing…

Signal Processing · Electrical Eng. & Systems 2024-09-11 Cheng Luo , Jie Hu , Luping Xiang , Kun Yang , Bo Lei

Localization in indoor environments is a technique which estimates the robot's pose by fusing data from onboard motion sensors with readings of the environment, in our case obtained by scan matching point clouds captured by a low-cost…

Systems and Control · Computer Science 2015-03-05 Martin Barczyk , Silvère Bonnabel , Jean-Emmanuel Deschaud , François Goulette

Constrained environments, such as indoor and urban settings, present a significant challenge for accurate moving object positioning due to the diminished line-of-sight (LoS)communication with the wireless anchor used for positioning. The…

Signal Processing · Electrical Eng. & Systems 2024-03-04 Qamar Bader , Sharief Saleh , Mohamed Elhabiby , Aboelmagd Noureldin

Despite the significant attention that aerial base stations (ABSs) have received recently, their practical implementation is severely weakened by their limited endurance due to the battery constraints of drones. To overcome this fundamental…

Emerging Technologies · Computer Science 2025-11-20 Wen Shang , Yuan Liao , Vasilis Friderikos , Halim Yanikomeroglu

Indoor Positioning System (IPS) is a crucial technology that enables medical staff and hospital managements to accurately locate and track persons or assets inside the medical buildings. Among other technologies, Bluetooth Low Energy (BLE)…

Signal Processing · Electrical Eng. & Systems 2023-10-24 Silvano Cortesi , Marc Dreher , Michele Magno

In this short paper, we propose a technique for AI-based identification of modulation and coding schemes (MCS) in surrounding cellular signals. Based on the created MCS map, we evaluate the performance of indoor localization techniques.

Networking and Internet Architecture · Computer Science 2025-03-24 Łukasz Kułacz , Adrian Kliks , Julius Ruseckas , Gediminas Molis