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This work makes multiple scientific contributions to the field of Indoor Localization for Ambient Assisted Living in Smart Homes. First, it presents a Big-Data driven methodology that studies the multimodal components of user interactions…

Human-Computer Interaction · Computer Science 2021-06-30 Nirmalya Thakur , Chia Y. Han

Localizing smartphones in indoor environments offers excellent opportunities for e-commerce. In this paper, we propose a localization technique for smartphones in indoor environments. This technique can calculate the coordinates of a…

Signal Processing · Electrical Eng. & Systems 2018-10-10 Md. Tanvir Hossan , Mostafa Zaman Chowdhury , Amirul Islam , Yeong Min Jang

Wi-Fi sensing has been extensively explored for various applications, including vital sign monitoring, human activity recognition, indoor localization, and tracking. However, practical implementation in real-world scenarios is hindered by…

Networking and Internet Architecture · Computer Science 2025-12-02 He Wang , Yunpeng Ge , Ivan Wang-Hei Ho

Robust pedestrian safety is crucial to the next-generation of intelligent transportation systems. Such systems rely on active pedestrian localization and predictive collision alerts. Pedestrian localization can be supported by…

Robotics · Computer Science 2026-05-19 Joshua Varughese , Joseba Gorospe , Novel Certad , Cristina Olaverri-Monreal

Proximity detection is to determine whether an IoT receiver is within a certain distance from a signal transmitter. Due to its low cost and high popularity, Bluetooth low energy (BLE) has been used to detect proximity based on the received…

Human-Computer Interaction · Computer Science 2022-01-13 Tianlang He , Jiajie Tan , Weipeng Zhuo , Maximilian Printz , S. -H. Gary Chan

The Global Navigation Satellite Systems (GNSS) like GPS suffer from accuracy degradation and are almost unavailable in indoor environments. Indoor positioning systems (IPS) based on WiFi signals have been gaining popularity. However, owing…

Signal Processing · Electrical Eng. & Systems 2021-10-22 Pranav Sankhe , Saqib Azim , Sachin Goyal , Tanya Choudhary , Kumar Appaiah , Sukumar Srikant

Wireless localization for mobile device has attracted more and more interests by increasing the demand for location based services. Fingerprint-based localization is promising, especially in non-Line-of-Sight (NLoS) or rich scattering…

Signal Processing · Electrical Eng. & Systems 2019-07-02 Heng Zhang , Zhichao Zhang , Shunqing Zhang , Shugong Xu , Shan Cao

In daily life, mobile and wearable devices with high computing power, together with anchors deployed in indoor environments, form a common solution for the increasing demands for indoor location-based services. Within the technologies and…

Signal Processing · Electrical Eng. & Systems 2022-11-29 Pavel Pascacio , Joaquín Torres-Sospedra , Sven Casteleyn , Elena Simona Lohan

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

Whisker-like touch sensors offer unique advantages for short-range perception in environments where visual and long-range sensing are unreliable, such as confined, cluttered, or low-visibility settings. This paper presents a framework for…

Applied Physics · Physics 2026-01-12 Prasanna K. Routray , Basak Sakcak , Steven M. LaValle , Manivannan M

Localization in indoor environments is essential to further support automation in a wide array of scenarios. Moreover, direction-of-arrival knowledge is essential to supporting high speed millimeter-wave (mmWave) links in indoor…

Robotics · Computer Science 2019-11-12 Letizia Moro , Hani Mehrpouyan

Businesses planning for the post-pandemic world are looking for innovative ways to protect the health and welfare of their employees and customers. Wireless technologies can play a key role in assisting contact tracing to quickly halt a…

Cryptography and Security · Computer Science 2020-07-10 Pai Chet Ng , Petros Spachos , Stefano Gregori , Konstantinos Plataniotis

Any audio recording encapsulates the unique fingerprint of the associated acoustic environment, namely the background noise and reverberation. Considering the scenario of a room equipped with a fixed smart speaker device with one or more…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-05 Francesco Nespoli , Daniel Barreda , Patrick A. Naylor

Contact tracing is widely considered as an effective procedure in the fight against epidemic diseases. However, one of the challenges for technology based contact tracing is the high number of false positives, questioning its…

Computers and Society · Computer Science 2020-07-28 Khuong An Nguyen , Zhiyuan Luo , Chris Watkins

Indoor location identification and navigation need to be as simple, seamless, and ubiquitous as its outdoor GPS-based counterpart is. It would be of great convenience to the mobile user to be able to continue navigating seamlessly as he or…

Networking and Internet Architecture · Computer Science 2018-10-24 Fahed Awad , Aisha Al-Sadi , Fida'a Al-Quran , Abdulsalam Alsmady

Accurate information about the location and orientation of a camera in mobile devices is central to the utilization of location-based services (LBS). Most of such mobile devices rely on GPS data but this data is subject to inaccuracy due to…

Computer Vision and Pattern Recognition · Computer Science 2014-12-31 Mahdi Salarian

For decades, the determination of an objects location has been implemented utilizing different technologies. Despite GPS (Global Positioning System) provides a scalable efficient and cost effective location services however the satellite…

Cryptography and Security · Computer Science 2022-10-04 Ali Abdullah S. AlQahtani , Nazim Choudhury

WiFi technology has been used pervasively in fine-grained indoor localization, gesture recognition, and adaptive communication. Achieving better performance in these tasks generally boils down to differentiating Line-Of-Sight (LOS) from…

Robotics · Computer Science 2020-02-06 Sahib Singh Dhanjal , Maani Ghaffari , Ryan M. Eustice

We introduce a novel technique and an associated high resolution dataset that aims to precisely evaluate wireless signal based indoor positioning algorithms. The technique implements an augmented reality (AR) based positioning system that…

Machine Learning · Computer Science 2022-09-09 F. Serhan Daniş , A. Teoman Naskali , A. Taylan Cemgil , Cem Ersoy

Localization of a wireless mobile device or a robot in indoor and GPS-denied environments is a difficult problem, particularly in dynamic scenarios where traditional cameras and LIDAR-based alternative sensing and localization modalities…

Robotics · Computer Science 2022-01-14 Ehsan Latif , Ramviyas Parasuraman