Results 11 to 20 of about 9,860 (181)

A New Algorithm for Indoor RSSI Radio Map Reconstruction

open access: yesIEEE Access, 2018
This paper proposes an empirical model of RSSI radio map in order to improve the indoor positioning accuracy of Wi-Fi RSSI. First, the signal feature point in RSSI space is proposed based on the indoor RSSI map, which is similar to the geomorphic feature
Weixing Xue   +2 more
exaly   +3 more sources

Wireless Localization Based on RSSI Fingerprint Feature Vector

open access: yesInternational Journal of Distributed Sensor Networks, 2015
RSSI wireless signal is a reference information that is widely used in indoor positioning. However, due to the wireless multipath influence, the value of the received RSSI will have large fluctuations and cause large distance error when RSSI is fitted to
Aiguo Zhang   +4 more
doaj   +2 more sources

Reduction of RSSI variations for indoor position estimation in wireless sensor networks

open access: yesEngineering and Applied Science Research, 2018
In this paper, the reduction of RSSI (received signal strength indicator) variation for indoor position estimation in wireless sensor networks (WSNs) is studied through simulation. We demonstrate that using raw RSSI data (with high variation) to estimate
Apidet Booranawong   +3 more
doaj   +2 more sources

OCTA-Derived Retinal Biomarkers and Infarct Topography Improve Etiologic Classification of Recent Single Subcortical Infarction: A Nomogram Model. [PDF]

open access: yesCNS Neurosci Ther
A nomogram integrating reduced superficial vascular complex density on OCTA with proximal and multi‐slice infarct topography improves differentiation of branch atheromatous disease (BAD) from CSVD‐related lacunar infarction (CSVD‐related LI) in recent single subcortical infarction (RSSI).
Jiang S   +7 more
europepmc   +2 more sources

Desempeño RSSI de nodos sensores LoRa, BLE y WiFi en un sistema IoT interoperable

open access: yesAiBi Revista de Investigación, Administración e Ingeniería, 2021
En este artículo se muestra el proceso de diseño e implementación de un sistema de interoperabilidad para IoT Internet de las Cosas. Integra en un procesador, sistema embebido Raspberry Pi3 la interconexión con los estándares IEEE 802.15.4 - LoRa, IEEE ...
Octavio José Salcedo-Parra   +1 more
doaj   +1 more source

Indoor Positioning and Navigating System Application Using Wi-Fi with Fingerprinting Method and Weighted K-Nearest Neighbor Algorithm

open access: yesJurnal Jaringan Telekomunikasi, 2022
The need for accurate indoor location determination, object tracking, digital maps and indoor travel routes is increasing along with the construction of buildings that have complex and spacious layouts.
Arya Putra Hadi Yulianto   +2 more
doaj   +1 more source

Distance Estimation Based on RSSI and Log-Normal Shadowing Models for ZigBee Wireless Sensor Network [PDF]

open access: yesEngineering and Technology Journal, 2016
In the last few years, a mobile wireless sensor and its application in wireless sensor network (WSN) are commonly used. Localization of a mobile sensor node is considered a critical issue in some WSN applications.
Salim Latif Mohammed
doaj   +1 more source

Rancang Bangun Sistem Mode Persiapan pada Mobil Berbasis Mikrokontroler

open access: yesJurnal Jaringan Telekomunikasi, 2021
People want a vehicle that is ready to use without having to wait for long or in the sense that the performance of an activity can run efficiently.
Alfan Tamamy   +2 more
doaj   +1 more source

Perancangan dan Analisa Antena Yagi 12 Elemen untuk Module Lora RFM95W pada Frekuensi 915 MHz

open access: yesJurnal Jaringan Telekomunikasi, 2021
Pada penelitian bertujuan untuk merancang antena Yagi 12 elemen agar dapat diaplikasikan pada module Lora RFM95W yang bekerja pada frekuensi 915 MHz, untuk mencari pengaruh daya penerimaan sinyal terhadap module Lora.
Fajar Alviandi   +2 more
doaj   +1 more source

FFK: Fourier-Transform Fuzzy-c-means Kalman-Filter Based RSSI Filtering Mechanism for Indoor Positioning

open access: yesSensors, 2023
As indoor positioning has been widely utilized for many applications of the Internet of Things, the Received Signal Strength Indication (RSSI) fingerprint has become a common approach to distance estimation because of its simple and economical design ...
Chinyang Henry Tseng, Woei-Jiunn Tsaur
doaj   +1 more source

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