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The use of fingerprinting localization techniques in outdoor IoT settings has started to gain popularity over the recent years. Communication signals of Low Power Wide Area Networks (LPWAN), such as LoRaWAN, are used to estimate the…

Machine Learning · Computer Science 2020-11-10 Grigorios G. Anagnostopoulos , Alexandros Kalousis

In wireless networks, radio-map based locating techniques are commonly used to cope the complex fading feature of radio signal, in which a radio-map is built by calibrating received signal strength (RSS) signatures at training locations in…

Networking and Internet Architecture · Computer Science 2016-11-17 Xiongfeng Geng , Yongcai Wang , Haoran Feng , Zhoufeng Chen

Multiplicative noise widely exists in radar images, medical images and other important fields' images. Compared to normal noises, multiplicative noise has a generally stronger effect on the visual expression of images. Aiming at the…

Image and Video Processing · Electrical Eng. & Systems 2026-04-14 Xiao Siyao , Huang Libing , Zhang Shunsheng

Multiple LPWANs have been rolled out to support the variety of IoT applications that are crucial to the ongoing digital transformation. These networks vary largely in terms of quality-of-service, throughput and energy-efficiency. To cover…

Networking and Internet Architecture · Computer Science 2022-07-18 Guus Leenders , Gilles Callebaut , Liesbet Van der Perre , Lieven De Strycker

Low-Power Wide-Area Networks (LPWANs) emerged to cover the needs of Internet of Things (IoT)-devices for operational longevity and long operating range. Among LPWANs, Long Range (LoRa) WAN has been the most promising; an upcoming IoT…

Networking and Internet Architecture · Computer Science 2018-06-01 Nikos Kouvelas , Vijay Rao , R. R. Venkatesha Prasad

Distributed Acoustic Sensing (DAS) is promising for traffic monitoring, but its extensive data and sensitivity to vibrations, causing noise, pose computational challenges. To address this, we propose a two-step deep-learning workflow with…

Geophysics · Physics 2024-03-06 Dongzi Xie , Xinming Wu , Zhixiang Guo , Heting Hong , Baoshan Wang , Yingjiao Rong

LPWAN is an enabling technology for long-range, low-power, and low-cost IoT/CPS applications. Recently, multiple LPWAN technologies have been developed that operate in the licensed (e.g., 5G) and ISM (e.g., LoRa) bands. To avoid the crowd…

Networking and Internet Architecture · Computer Science 2020-09-01 Mahbubur Rahman

There have been many research efforts in the area of localization in recent years. Especially within the Internet of Things (IoT), the knowledge of position information for individual components is of great interest, for example, in asset…

Signal Processing · Electrical Eng. & Systems 2024-01-23 Thomas Maul , Joerg Robert , Sebastian Klob

Low power wide area network technologies (LPWANs) are attracting attention because they fulfill the need for long range low power communication for the Internet of Things. LoRa is one of the proprietary LPWAN physical layer (PHY)…

Information Theory · Computer Science 2019-02-21 Reza Ghanaatian , Orion Afisiadis , Matthieu Cotting , Andreas Burg

Smart homes, powered by the Internet of Things, offer great convenience but also pose security concerns due to abnormal behaviors, such as improper operations of users and potential attacks from malicious attackers. Several behavior…

Cryptography and Security · Computer Science 2024-06-19 Jingyu Xiao , Zhiyao Xu , Qingsong Zou , Qing Li , Dan Zhao , Dong Fang , Ruoyu Li , Wenxin Tang , Kang Li , Xudong Zuo , Penghui Hu , Yong Jiang , Zixuan Weng , Michael R. Lyv

This paper describes the development of a system that enables real time data visualization via a webapp regarding sound intensity using multiple node devices connected through internet. The prototypes were realized using ATmega328 (Arduino…

Networking and Internet Architecture · Computer Science 2020-02-27 Sakib Ahmed , Touseef Saleh Bin Ahmed , Sumaiya Jafreen , Jannatul Tajrin , Jia Uddin

One of the primary goals in spectrum occupancy mapping is to create a system that is robust to assumptions about the number of sensors, occupancy threshold (in dBm), sensor noise, number of emitters and the propagation environment. We show…

Signal Processing · Electrical Eng. & Systems 2023-02-14 Abbas Termos , Bertrand Hochwald

We present a stereo-based dense mapping algorithm for large-scale dynamic urban environments. In contrast to other existing methods, we simultaneously reconstruct the static background, the moving objects, and the potentially moving but…

Computer Vision and Pattern Recognition · Computer Science 2019-05-09 Ioan Andrei Bârsan , Peidong Liu , Marc Pollefeys , Andreas Geiger

Low Power Wide Area (LPWA) networks are attracting a lot of attention primarily because of their ability to offer affordable connectivity to the low-power devices distributed over very large geographical areas. In realizing the vision of…

Networking and Internet Architecture · Computer Science 2017-01-12 Usman Raza , Parag Kulkarni , Mahesh Sooriyabandara

With rapid urbanization comes the increase of community, construction, and transportation noise in residential areas. The conventional approach of solely relying on sound pressure level (SPL) information to decide on the noise environment…

Audio and Speech Processing · Electrical Eng. & Systems 2024-08-13 Ee-Leng Tan , Furi Andi Karnapi , Linus Junjia Ng , Kenneth Ooi , Woon-Seng Gan

Acoustic noise has adverse effects on human activities. Aside from hearing impairment and stress-related illnesses, it can also interfere with spoken communication, reduce human performance and affect the quality of life. As urbanization is…

Networking and Internet Architecture · Computer Science 2020-01-23 Evan Fallis , Petros Spachos , Stefano Gregori

IoT has a significant role in the smart campus. This paper presents a detailed description of the Smart Campus dataset based on LoRaWAN. LoRaWAN is an emerging technology that enables serving hundreds of IoT devices. First, we describe the…

Machine Learning · Computer Science 2023-04-27 Eslam Eldeeb , Hirley Alves

The Long-Range Wide-Area Network (LoRaWAN) specification was released in 2015, primarily to support the Internet-of-Things by facilitating wireless communication over long distances. Since 2015, the role-out and adoption of LoRaWAN has seen…

Networking and Internet Architecture · Computer Science 2017-06-13 Norbert Blenn , Fernando Kuipers

Autonomous driving needs various line-of-sight sensors to perceive surroundings that could be impaired under diverse environment uncertainties such as visual occlusion and extreme weather. To improve driving safety, we explore to wirelessly…

Networking and Internet Architecture · Computer Science 2020-12-21 Qiang Liu , Tao Han , Jiang , Xie , BaekGyu Kim

Massive machine-type communications (mMTC) are fundamental to the Internet of Things (IoT) framework in future wireless networks, involving the connection of a vast number of devices with sporadic transmission patterns. Traditional device…

Signal Processing · Electrical Eng. & Systems 2025-10-22 Xinjue Wang , Esa Ollila , Sergiy A. Vorobyov