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Current and future wireless applications strongly rely on precise real-time localization. A number of applications such as smart cities, Internet of Things (IoT), medical services, automotive industry, underwater exploration, public safety,…

Signal Processing · Electrical Eng. & Systems 2019-06-11 Nasir Saeed , Haewoon Nam , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

In autonomous driving, data augmentation is commonly used for improving 3D object detection. The most basic methods include insertion of copied objects and rotation and scaling of the entire training frame. Numerous variants have been…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Jungwook Shin , Jaeill Kim , Kyungeun Lee , Hyunghun Cho , Wonjong Rhee

Recently, location-based services (LBS) have steered attention to indoor positioning systems (IPS). WLAN-based IPSs relying on received signal strength (RSS) measurements such as fingerprinting are gaining popularity due to proven high…

Networking and Internet Architecture · Computer Science 2019-07-02 Erick Schmidt , David Akopian

Multipath and non-line-of-sight (NLOS) signals are the major causes of poor accuracy of a global navigation satellite system (GNSS) in urban areas. Despite the wide usage of the GNSS in populated urban areas, it is difficult to suggest a…

Systems and Control · Electrical Eng. & Systems 2022-06-10 Yongjun Lee , Yoola Hwang , Jae Young Ahn , Jiwon Seo , Byungwoon Park

The scale of wireless technologies penetration in our daily lives, primarily triggered by the Internet-of-things (IoT)-based smart cities, is beaconing the possibilities of novel localization and tracking techniques. Recently, low-power…

Signal Processing · Electrical Eng. & Systems 2020-06-03 Mahnoor Anjum , Muhammad Abdullah Khan , Syed Ali Hassan , Aamir Mahmood , Hassaan Khaliq Qureshi , Mikael Gidlund

Given the rapid advancements in wireless communication and terminal devices, high-speed and convenient WiFi has permeated various aspects of people's lives, and attention has been drawn to the location services that WiFi can provide.…

Signal Processing · Electrical Eng. & Systems 2023-07-03 Jiyu Jiao , Xiaojun Wang , Chenlin He

Indoor localization based on SIngle Of Fingerprint (SIOF) is rather susceptible to the changing environment, multipath, and non-line-of-sight (NLOS) propagation. Building SIOF is also a very time-consuming process. Recently, we first…

Machine Learning · Statistics 2017-12-21 Xiansheng Guo , Nirwan Ansari , Huiyong Li

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

The localization speed and accuracy in the indoor scenario can greatly impact the Quality of Experience of the user. While many individual machine learning models can achieve comparable positioning performance, their prediction mechanisms…

Signal Processing · Electrical Eng. & Systems 2022-07-19 Lucie Klus , Darwin Quezada-Gaibor , Joaquın Torres-Sospedra , Elena Simona Lohan , Carlos Granell , Jari Nurmi

This paper proposes a predictive rate-selection framework based on Gaussian process (GP)-based radio map construction that is robust to location uncertainty. Radio maps are a promising tool for improving communication efficiency in 6G…

Signal Processing · Electrical Eng. & Systems 2025-09-19 Koya Sato

Multiple mobile robots play a significant role in various spatially distributed tasks.In unfamiliar and non-repetitive scenarios, reconstructing the global map is time-inefficient and sometimes unrealistic. Hence, research has focused on…

Robotics · Computer Science 2025-12-29 Weining Lu , Qingquan Lin , Litong Meng , Chenxi Li , Bin Liang

GNSS are indispensable for various applications, but they are vulnerable to spoofing attacks. The original receiver autonomous integrity monitoring (RAIM) was not designed for securing GNSS. In this context, RAIM was extended with wireless…

Cryptography and Security · Computer Science 2024-02-07 Wenjie Liu , Panos Papadimitratos

Indoor localization is a critical task in many embedded applications, such as asset tracking, emergency response, and realtime navigation. In this article, we propose a novel fingerprintingbased framework for indoor localization called…

Machine Learning · Computer Science 2024-03-05 Danish Gufran , Saideep Tiku , Sudeep Pasricha

Recently, there has been an increasing interest in 6G technology for integrated sensing and communications, where positioning stands out as a key application. In the realm of 6G, cell-free massive multiple-input multiple-output (MIMO)…

Signal Processing · Electrical Eng. & Systems 2025-05-05 Manish Kumar , Tzu-Hsuan Chou , Byunghyun Lee , Nicolo Michelusi , David J. Love , James V. Krogmeier

Location knowledge in indoor environment using Indoor Positioning Systems (IPS) has become very useful and popular in recent years. Indoor wireless localization suffers from severe multi-path fading and non-line-of-sight conditions. This…

Systems and Control · Electrical Eng. & Systems 2023-09-26 Gang Wang , Zuxuan Zhang

The next-generation internet of things (IoT) systems have an increasingly demand on intelligent localization which can scale with big data without human perception. Thus, traditional localization solutions without accuracy metric will…

Signal Processing · Electrical Eng. & Systems 2020-04-10 You Li , Zhe He , Zhouzheng Gao , Yuan Zhuang , Chuang Shi , Naser El-Sheimy

Deep learning shows promising performance in wireless sensing. However, deep wireless sensing (DWS) heavily relies on large datasets. Unfortunately, building comprehensive datasets for DWS is difficult and costly, because wireless data…

Signal Processing · Electrical Eng. & Systems 2024-10-11 Weiying Hou , Chenshu Wu

This study describes a UWB and Machine Learning (ML)-based indoor positioning system. We propose a simple mathematical strategy to create data to reduce the job of measurements for fingerprint-based indoor localization systems. A…

Signal Processing · Electrical Eng. & Systems 2022-04-11 Anqi Yin , Zihuai Lin

We develop an online probabilistic metric-semantic mapping approach for mobile robot teams relying on streaming RGB-D observations. The generated maps contain full continuous distributional information about the geometric surfaces and…

Robotics · Computer Science 2021-03-31 Ehsan Zobeidi , Alec Koppel , Nikolay Atanasov

Wi-Fi-based positioning promises a scalable and privacy-preserving solution for location-based services in indoor environments such as malls, airports, and campuses. RSS-based methods are widely deployable as RSS data is available on all…

Signal Processing · Electrical Eng. & Systems 2025-09-30 Abdulkadir Bilge , Erdem Ergen , Burak Soner , Sinem Coleri