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Accurate localization in indoor environments is a challenge due to the Non Line of Sight (NLoS) nature of the signaling. In this paper, we explore the use of AI/ML techniques for positioning accuracy enhancement in Indoor Factory (InF)…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Sai Prasanth Kotturi , Anil Kumar Yerrapragada , Sai Prasad , Radha Krishna Ganti

In this paper, we propose hybrid building/floor classification and floor-level two-dimensional location coordinates regression using a single-input and multi-output (SIMO) deep neural network (DNN) for large-scale indoor localization based…

Machine Learning · Computer Science 2018-10-16 Kyeong Soo Kim

Indoor localization systems are most commonly based on Received Signal Strength Indicator (RSSI) measurements of either WiFi or Bluetooth-Low-Energy (BLE) beacons. In such systems, the two most common techniques are trilateration and…

Networking and Internet Architecture · Computer Science 2020-06-17 Ramdoot Pydipaty , Johnu George , Krishna Selvaraju , Amit Saha

The increasing need for robustness, reliability, and determinism in wireless networks for industrial and mission-critical applications is the driver for the growth of new innovative methods. The study presented in this work makes use of…

Networking and Internet Architecture · Computer Science 2025-12-04 Gabriele Formis , Amanda Ericson , Stefan Forsstrom , Kyi Thar , Gianluca Cena , Stefano Scanzio

Among many techniques for indoor localization, fingerprinting has been shown to provide a higher accuracy compared to the alternative techniques. Fingerprinting techniques require an initial calibration phase during which site surveyors…

Signal Processing · Electrical Eng. & Systems 2019-02-06 Hamada Rizk , Moustafa Youssef

Federated distillation (FD) paradigm has been recently proposed as a promising alternative to federated learning (FL) especially in wireless sensor networks with limited communication resources. However, all state-of-the art FD algorithms…

Signal Processing · Electrical Eng. & Systems 2022-10-12 Yaya Etiabi , Marwa Chafii , El Mehdi Amhoud

Smartphones have been shipped with multiple wireless network interfaces in order to meet their diverse communication and networking demands. However, as smartphones increasingly rely on wireless network connections to realize more…

Networking and Internet Architecture · Computer Science 2013-12-25 Feng Xia , Ching-Hsien Hsu , Xiaojing Liu , Fangwei Ding , Wei Zhang

Wi-Fi-based indoor localization has been extensively studied for context-aware services. As a result, the accurate Wi-Fi-based indoor localization introduces a great location privacy threat. However, the existing solutions for location…

Networking and Internet Architecture · Computer Science 2024-07-24 Aditya Arun , Vaibhav Anand , Wei Sun , Roshan Ayyalasomayajula , Dinesh Bharadia

Indoor humidity is a crucial factor affecting people's health and well-being. Wireless humidity sensing techniques are scalable and low-cost, making them a promising solution for measuring humidity in indoor environments without requiring…

Signal Processing · Electrical Eng. & Systems 2024-09-13 Yirui Deng , Deepak Mishra , Shaghik Atakaramians , Aruna Seneviratne

Geographical location solutions have a wide diversity of applications, ranging from emergency services to access to tourist and entertainment services. GPS (Global Positioning System) is the most widely used system for outdoor areas. Since…

Networking and Internet Architecture · Computer Science 2014-02-07 Juan Toloza , Nelson Acosta , Carlos Kornuta

An efficient method is proposed for refining GPS-acquired location coordinates in urban areas using camera images, Google Street View (GSV) and sensor parameters. The main goal is to compensate for GPS location imprecision in dense area of…

Computer Vision and Pattern Recognition · Computer Science 2015-10-29 Mahdi Salarian , Rashid Ansari

In a multiuser context, the Bluetooth data from the smartphone could give an approximation of the distance between users. Meanwhile, the Wi-Fi data can be used to calculate the user's position directly. However, both the Wi-Fi-based…

Signal Processing · Electrical Eng. & Systems 2018-07-17 Viet-Cuong Ta , Trung-Kien Dao , Dominique Vaufreydaz , Eric Castelli

Localization defines a term to describe the identifying process of a location within the space of two-dimensional (2D) space or three-dimensional (3D). A localization scheme is an important concern for connecting sensor nodes in remote…

Signal Processing · Electrical Eng. & Systems 2019-08-26 Md Tanvir Hossan

Human localization is gaining momentum in security, healthcare, logistics, and smart spaces applications. While global navigation systems are unreliable indoor, device-free (a.k.a. passive) localization methods that exploit human-induced…

Signal Processing · Electrical Eng. & Systems 2026-05-07 Federica Fieramosca , Anastasia Maiolli , Alexander H. Paulus , Stefano Savazzi , Michele D'Amico

Given that the accuracy of range-based positioning techniques generally increases with the number of available anchor nodes, it is important to secure more of these nodes. To this end, this paper studies an unsupervised learning technique…

Networking and Internet Architecture · Computer Science 2019-07-24 Jeongsik Choi , Yang-Seok Choi , Shilpa Talwar

Proximity detection in indoor environments based on WiFi signals has gained significant attention in recent years. Existing works rely on the dynamic signal reflections and their extracted features are dependent on motion strength. To…

Signal Processing · Electrical Eng. & Systems 2024-05-01 Yuqian Hu , Guozhen Zhu , Beibei Wang , K. J. Ray Liu

Indoor localization using deep learning (DL) has demonstrated strong accuracy in mapping Wi-Fi RSS fingerprints to physical locations; however, most existing DL frameworks function as black-box models, offering limited insight into how…

Machine Learning · Computer Science 2025-06-19 Danish Gufran , Sudeep Pasricha

We present experimental results and theoretical methods for the precise determination of the presence and the number of persons in an observed area by using Wi-Fi signals. Our setup does not require active cooperation of persons present in…

Signal Processing · Electrical Eng. & Systems 2025-02-12 Dario Jukić , Silvije Domazet , Ante Ivanko , David Raca , Siniša Nikolić , Marin Knežević , Filip Jović , Nenad Raca , Hrvoje Buljan

Today's societies are enveloped in an ever-growing telecommunication infrastructure. This infrastructure offers important opportunities for sensing and recording a multitude of human behaviors. Human mobility patterns are a prominent…

Computers and Society · Computer Science 2016-10-18 Piotr Sapiezynski , Arkadiusz Stopczynski , David Kofoed Wind , Jure Leskovec , Sune Lehmann

Positional estimation is of great importance in the public safety sector. Emergency responders such as fire fighters, medical rescue teams, and the police will all benefit from a resilient positioning system to deliver safe and effective…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Zhuangzhuang Dai , Muhamad Risqi U. Saputra , Chris Xiaoxuan Lu , Niki Trigoni , Andrew Markham
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