Results 31 to 40 of about 455,104 (191)

An Experimental Field Comparison of Wi-Fi HaLow and LoRa for the Smart Grid

open access: yesSensors, 2023
IEEE 802.11ah, or Wi-Fi HaLow, is a long-range Internet of Things (IoT) communication technology with promising performance claims. Being IP-based makes it an attractive prospect when interfacing with existing IP networks.
Luke Kane   +3 more
doaj   +1 more source

Discovering Human Presence Activities with Smartphones Using Nonintrusive Wi-Fi Sniffer Sensors: The Big Data Prospective

open access: yesInternational Journal of Distributed Sensor Networks, 2013
With the explosive growth and wide-spread use of smartphones with Wi-Fi enabled, people are used to accessing the internet through Wi-Fi network interfaces of smartphones.
Weijun Qin   +3 more
doaj   +1 more source

Full-Duplex Assisted LTE-U/Wifi Coexisting Networks in Unlicensed Spectrum

open access: yesIEEE Access, 2018
With the boosting of mobile services, licensed spectrum for wireless networks becomes more and more crowded. To explore new spectrum for cellular users, more and more mobile operators are interested in deploying the long-term evolution in unlicensed ...
Zhuohui Yao, Wenchi Cheng, Hailin Zhang
doaj   +1 more source

Zero-Effort Cross-Domain Gesture Recognition with Wi-Fi

open access: yesACM SIGMOBILE International Conference on Mobile Systems, Applications, and Services, 2019
Wi-Fi based sensing systems, although sound as being deployed almost everywhere there is Wi-Fi, are still practically difficult to be used without explicit adaptation efforts to new data domains.
Yue Zheng   +6 more
semanticscholar   +1 more source

Intelligent Fusion Structure for Wi-Fi/BLE/QR/MEMS Sensor-Based Indoor Localization

open access: yesRemote Sensing, 2023
Due to the complexity of urban environments, localizing pedestrians indoors using mobile terminals is an urgent task in many emerging areas. Multi-source fusion-based localization is considered to be an effective way to provide location-based services in
Yue Yu   +3 more
semanticscholar   +1 more source

UTMInDualSymFi: A Dual-Band Wi-Fi Dataset for Fingerprinting Positioning in Symmetric Indoor Environments

open access: yesInternational Conference on Data Technologies and Applications, 2023
Recent studies on indoor positioning using Wi-Fi fingerprinting are motivated by the ubiquity of Wi-Fi networks and their promising positioning accuracy. Machine learning algorithms are commonly leveraged in indoor positioning works.
Asim Abdullah   +4 more
semanticscholar   +1 more source

An Indoor Continuous Positioning Algorithm on the Move by Fusing Sensors and Wi-Fi on Smartphones

open access: yesSensors, 2015
Wi-Fi indoor positioning algorithms experience large positioning error and low stability when continuously positioning terminals that are on the move. This paper proposes a novel indoor continuous positioning algorithm that is on the move, fusing sensors
Huaiyu Li   +7 more
doaj   +1 more source

Estimating bus passenger volume based on a Wi-Fi scanner survey

open access: yesTransportation Research Interdisciplinary Perspectives, 2020
The main objective of this study is to estimate bus passenger volume based on a Wi-Fi scanner transportation survey. The study proposes a new data cleaning procedure to characterize bus passenger volume using a combination of media access control (MAC ...
Arief Hidayat   +2 more
doaj   +1 more source

Lightweight Wi-Fi Frame Detection for Licensed Assisted Access LTE

open access: yesIEEE Access, 2019
Licensed assisted access LTE (LAA-LTE) aggregates 5 GHz unlicensed bands with LTE's licensed bands via carrier aggregation, and adopts energy detection (ED)-based clear channel assessment (CCA) for protection of coexisting Wi-Fi devices.
Sung-Tae Hong   +3 more
doaj   +1 more source

A Wi-Fi-Based Passive Indoor Positioning System via Entropy-Enhanced Deployment of Wi-Fi Sniffers

open access: yesSensors, 2023
This study presents a Wi-Fi-based passive indoor positioning system (IPS) that does not require active collaboration from the user or additional interfaces on the device-under-test (DUT).
Poh Yuen Chan   +2 more
doaj   +1 more source

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