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Uplink sensing in perceptive mobile networks (PMNs), which uses uplink communication signals for sensing the environment around a base station, faces challenging issues of clock asynchronism and the requirement of a line-of-sight (LOS) path…

Information Theory · Computer Science 2022-11-08 Zhitong Ni , J. Andrew Zhang , Kai Wu , Ren Ping Liu

Increasingly available high-frequency location datasets derived from smartphones provide unprecedented insight into trajectories of human mobility. These datasets can play a significant and growing role in informing preparedness and…

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

Recommender systems (RSs) have been popular in variety of application domains due to the increased demand for filtering and sorting items and information. Today, there is a numerous approaches and algorithms of data filtering and…

Information Retrieval · Computer Science 2017-12-06 Anh Nguyen Duc , Hilde Gudvangen

The increasingly sophisticated sensors supported by modern smartphones open up novel research opportunities, such as mobile phone sensing. One of the most challenging of these research areas is context-aware and activity recognition. The…

Computers and Society · Computer Science 2014-06-17 Jaziar Radianti , Julie Dugdale , Jose J. Gonzalez , Ole-Christoffer Granmo

Location-based service (LBS) applications proliferate and support transportation, entertainment, and more. Modern mobile platforms, with smartphones being a prominent example, rely on terrestrial and satellite infrastructures (e.g., global…

Cryptography and Security · Computer Science 2025-05-16 Wenjie Liu , Panos Papadimitratos

Miniaturization of cameras and LiDAR sensors has enabled the development of wearable 3D mapping systems for emergency responders. These systems have the potential to revolutionize response capabilities by providing real-time, high-fidelity…

Aircraft Ship Integrated Secure and Traverse (ASIST) is a system designed to arrest helicopters safely and efficiently on ships. Originally, a precision Helicopter Position Sensing Equipment (HPSE) tracked and monitored the position of the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Ari Goodman , Gurpreet Singh , Ryan O'Shea , Peter Teague , James Hing

We present \emph{SmartLoc}, a localization system to estimate the location and the traveling distance by leveraging the lower-power inertial sensors embedded in smartphones as a supplementary to GPS. To minimize the negative impact of…

Networking and Internet Architecture · Computer Science 2013-10-31 Cheng Bo , Xiang-Yang Li , Taeho Jung , Xufei Mao

The impact of localization systems in our daily lives is increasing. As next-generation networks will introduce hyperconnectivity with the emerging applications, this impact will undoubtedly further increase, proliferating the importance of…

Cryptography and Security · Computer Science 2021-06-09 Caner Goztepe , Saliha Buyukcorak , Gunes Karabulut Kurt , Halim Yanikomeroglu

Effective indoor positioning is critical for public safety, enabling first responders to locate at-risk individuals accurately during emergency scenarios. However, traditional Global Navigation Satellite Systems (GNSS) often perform poorly…

Signal Processing · Electrical Eng. & Systems 2025-03-18 Gaurav Duggal , Harish K. Dureppagari , Harpreet S. Dhillon , Jeffrey H. Reed , R. Michael Buehrer

The pinching-antenna systems (PASS), which dynamically activate and relocate the pinching-antennas (PAs) along the dielectric waveguide, offer unprecedented potential for integrated positioning and communication. The multi-waveguide-based…

Signal Processing · Electrical Eng. & Systems 2026-05-27 Yaoyu Zhang , Xin Sun , Jun Wang , Tianwei Hou , Anna Li , Yuanwei Liu , Arumugam Nallanathan

In this paper, we propose the replacement of widely used models of geo-information systems with a new conception based on network proximity. Geo-information systems have attracted great attention and demonstrated big progress in recent…

Networking and Internet Architecture · Computer Science 2019-06-25 Dmitry Namiot , Manfred Sneps-Sneppe

Location information will play a very important role in emerging wireless networks such as Intelligent Transportation Systems, 5G, and the Internet of Things. However, wrong location information can result in poor network outcomes. It is…

Signal Processing · Electrical Eng. & Systems 2020-07-08 Ullah Ihsan , Robert Malaney , Shihao Yan

The ever-increasing number of users and new services in urban regions can lead terrestrial base stations (BSs) to become overloaded and, consequently, some users to go unserved. Compounding this, users in urban areas can face severe…

Information Theory · Computer Science 2022-10-05 Safwan Alfattani , Animesh Yadav , Halim Yanikomeroglu , Abbas Yongacoglu

In this paper we investigate the problem of localizing a mobile device based on readings from its embedded sensors utilizing machine learning methodologies. We consider a real-world environment, collect a large dataset of 3110 datapoints,…

Machine Learning · Computer Science 2017-06-21 David Mascharka , Eric Manley

Fine-grained location prediction on smart phones can be used to improve app/system performance. Application scenarios include video quality adaptation as a function of the 5G network quality at predicted user locations, and augmented…

Global Positioning System (GPS) is a satellite network that transmits regularly encoded information and makes it possible to pinpoint the exact location on Earth by measuring the distance between satellites and the receiver. While GPS…

Systems and Control · Computer Science 2018-03-23 Mehmet Serdar Güzel , Erkan Meral

The number of pedestrian accidents continues to keep climbing. Distraction from smartphone is one of the biggest causes for pedestrian fatalities. In this paper, we develop SaferCross, a mobile system based on the embedded sensors of…

Computers and Society · Computer Science 2020-04-28 Myounggyu Won , Aawesh Shrestha , Kyung-Joon Park , Yongsoon Eun

Although outdoor localization is already available to the general public and businesses through the wide spread use of the GPS, it is not supported by low-end phones, requires a direct line of sight to satellites and can drain phone battery…

Computers and Society · Computer Science 2024-07-25 Ahmed Shokry , Moustafa Youssef