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Indoor localization becomes a raising demand in our daily lives. Due to the massive deployment in the indoor environment nowadays, WiFi systems have been applied to high accurate localization recently. Although the traditional model based…

Signal Processing · Electrical Eng. & Systems 2019-02-19 Chenlu Xiang , Zhichao Zhang , Shunqing Zhang , Shugong Xu , Shan Cao , Vincent LAU

Precise indoor localization is an increasingly demanding requirement for various emerging applications, like Virtual/Augmented reality and personalized advertising. Current indoor environments are equipped with pluralities of WiFi access…

Signal Processing · Electrical Eng. & Systems 2019-11-21 Chenlu Xiang , Shunqing Zhang , Shugong Xu , Xiaojing Chen , George C. Alexandropoulos , Vincent K. N. Lau

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

This paper studies the indoor localisation of WiFi devices based on a commodity chipset and standard channel sounding. First, we present a novel shallow neural network (SNN) in which features are extracted from the channel state information…

Machine Learning · Computer Science 2020-10-20 Peizheng Li , Han Cui , Aftab Khan , Usman Raza , Robert Piechocki , Angela Doufexi , Tim Farnham

Indoor localization has become an important issue for wireless sensor networks. This paper presents a zoning-based localization technique that uses WiFi signals and works efficiently in indoor environments. The targeted area is composed of…

Machine Learning · Statistics 2020-05-12 Daniel Alshamaa , Farah Chehade , Paul Honeine

One of the major issues in Wireless Body Area Sensor Networks (WBASNs) is efficient localization. There are various techniques for indoor and outdoor environments to locate a person. This study evaluating and compares performance of…

Networking and Internet Architecture · Computer Science 2012-07-09 Obaid ur Rehman , Nadeem Javaid , Ayesha Bibi , Zahoor Ali Khan

Because each indoor site has its own radio propagation characteristics, a site survey process is essential to optimize a Wi-Fi ranging strategy for range-based positioning solutions. This paper studies an unsupervised learning technique…

Networking and Internet Architecture · Computer Science 2020-07-14 Jeongsik Choi

To promote the practicality of deep learning-based localization, existing studies aim to address the issue of scenario dependence through meta-learning. However, these studies primarily focus on variations in environmental layouts while…

Machine Learning · Computer Science 2025-11-19 Qiqi Xiao , Ziqi Ye , Yinghui He , Jianwei Liu , Guanding Yu

State-of-the-art device-free localization systems infer presence and location of users based on received signal strength measurements of line-of-sight links in wireless networks. In this letter, we propose to enhance device-free…

Signal Processing · Electrical Eng. & Systems 2022-05-11 Martin Schmidhammer , Christian Gentner , Stephan Sand , Uwe-Carsten Fiebig

The last few decades have witnessed a growing interest in location-based services. Using localization systems based on Radio Frequency (RF) signals has proven its efficacy for both indoor and outdoor applications. However, challenges remain…

Systems and Control · Electrical Eng. & Systems 2020-12-22 Daoud Burghal , Ashwin T. Ravi , Varun Rao , Abdullah A. Alghafis , Andreas F. Molisch

The demand for device-free indoor localization using commercial Wi-Fi devices has rapidly increased in various fields due to its convenience and versatile applications. However, random frequency offset (RFO) in wireless channels poses…

Signal Processing · Electrical Eng. & Systems 2023-04-14 Wen Liu , An-Hung Hsiao , Li-Hsiang Shen , Kai-Ten Feng

In this work, we consider the task of target localization using quantized data in Wireless Sensor Networks (WSNs). We propose an energy efficient localization scheme by modeling it as an iterative classification problem. We design coding…

Applications · Statistics 2016-11-18 Aditya Vempaty , Yunghsiang S. Han , Pramod K. Varshney

Location-based services in a wireless network require nodes to know their locations accurately. Conventional solutions rely on contention-based medium access, where only one node can successfully transmit at any time in any neighborhood. In…

Networking and Internet Architecture · Computer Science 2013-09-10 Ming Gan , Dongning Guo , Xuchu Dai

Using WiFi signals for indoor localization is the main localization modality of the existing personal indoor localization systems operating on mobile devices. WiFi fingerprinting is also used for mobile robots, as WiFi signals are usually…

Robotics · Computer Science 2017-05-01 Michał Nowicki , Jan Wietrzykowski

Location-based services (LBS) are witnessing a rise in popularity owing to their key features of delivering powerful and personalized digital experiences. The recent developments in wireless sensing techniques make the realization of…

Signal Processing · Electrical Eng. & Systems 2023-05-30 Osamah A. Abdullah , Hayder Al-Hraishawi , Symeon Chatzinotas

WiFi-based device localization is a key enabling technology for smart applications, which has attracted numerous research studies in the past decade. Most of the existing approaches rely on Line-of-Sight (LoS) signals to work, while a…

Emerging Technologies · Computer Science 2025-04-10 Yimiao Sun , Yuan He , Jiacheng Zhang , Xin Na , Yande Chen , Weiguo Wang , Xiuzhen Guo

WiFi-based localization became one of the main indoor localization techniques due to the ubiquity of WiFi connectivity. However, indoor environments exhibit complex wireless propagation characteristics. Typically, these characteristics are…

Networking and Internet Architecture · Computer Science 2015-08-04 Heba Aly , Moustafa Youssef

Radio channel state information (CSI) measured with many receivers is a good resource for localizing a transmit device with machine learning with a discriminative model. However, CSI localization is nontrivial when the radio map is…

Signal Processing · Electrical Eng. & Systems 2020-08-26 Minseuk Kim , Changjun Kim , Dongsoo Han , June-Koo Kevin Rhee

Device-Free Localization (DFL) is a passive radio method able to detect, estimate, and localize targets (e.g., human or other obstacles) that do not need to carry any electronic device. According to the Integrated Sensing And Communication…

Signal Processing · Electrical Eng. & Systems 2025-06-10 Vittorio Rampa , Federica Fieramosca , Stefano Savazzi , Michele D'Amico

We propose a localization algorithm for wireless sensor networks, which is simple in design, does not involve significant overhead and yet provides acceptable position estimates of sensor nodes. The algorithm uses settled nodes as beacon…

Networking and Internet Architecture · Computer Science 2016-12-30 Muhammad Farooq-i-Azam , Muhammad Naeem Ayyaz , Saleem Akhtar
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