Results 121 to 130 of about 1,387,086 (314)

A Protocol-Channel-Based Indoor Positioning Performance Study for Bluetooth Low Energy

open access: yesIEEE Access, 2018
Bluetooth low energy (BLE) technology coupled with fingerprinting provides a simple way to position users with high accuracy in indoor environments. In this paper, we study the effect of BLE protocols and channels on indoor positioning using different ...
Gabriel De Blasio   +4 more
doaj   +1 more source

Bluetooth: With Low Energy comes Low Security

open access: yes, 2014
We discuss our tools and techniques to monitor and inject packets in Bluetooth Low Energy. Also known as BTLE or Bluetooth Smart, it is found in recent high-end smartphones, sports devices, sensors, and will soon appear in many medical devices.
Mike Ryan
core  

Bluetooth Low Energy Direction Finding Principle

open access: yes
The ubiquitous implementation of 5G networks and the Internet of Things (IoT), brings about the importance of indoor localization. Even though Global Positioning System (GPS) provides an efficient outdoor Positioning System (PS), indoor positioning ...
Boegli, Alexis   +2 more
core   +1 more source

Bluetooth Low Energy [PDF]

open access: yes, 2012
Opinnäytetyössäni esittelen Bluetooth low energyn eri osa-alueita. Historiassa käsittelen miten Bluetooth sai alkunsa ja kuinka siitä muodostui yksi tärkeimmistä langattomista teknologioista.
Nikki, Juha-Matti
core  

RANCANG BANGUN ALAT PENGUKUR KETINGGIAN, TEKANAN UDARA, DAN TEMPERATUR UDARA DENGAN BLUETOOTH LOW ENERGY: Keywords: BMP280, ESP32, bluetooth low energy

open access: yes, 2021
Abstrak Penelitian ini bertujuan merancang sebuah alat pengukur ketinggian, tekanan udara, dan temperatur udara yang dikemas dalam satu sistem alat. Sensor yang digunakan dalam penelitian ini adalah BMP280 yang merupakan sensor tekanan dan temperatur ...
Yantidewi, Meta   +2 more
core   +1 more source

Multi‐Axis Stretchable Zippers for Personalized Wound Healing

open access: yesAdvanced Science, EarlyView.
Multi‐axis stretchable zippers can adapt to complex wound morphologies and enable personalized wound treatment through programmable contraction. This morphological matching strategy helps accelerate wound closure, improve blood perfusion, promote epithelial regeneration, and enhance collagen remodeling, pioneering new directions for personalized and ...
Siyuan Cai   +16 more
wiley   +1 more source

BlueScream: Screaming Channels on Bluetooth Low Energy

open access: yes2024 Annual Computer Security Applications Conference (ACSAC)
In recent years, a class of wireless devices has been demonstrated to be vulnerable to a new side-channel attack called Screaming Channels. This attack exploits distant electromagnetic side channels up to a few meters, when a coupling occurs between the digital activity and the radio transceiver of a system. This can happen in mixed-signal chips, where
Ayoub, Pierre   +3 more
openaire   +2 more sources

Bluetooth Low Energy (BLE) based wireless sensors

open access: yes, 2012
The following paper presents the results of a feasibility study about Bluetooth Low Energy (BLE) based wireless sensors. The development of industrial wireless sensors leads to important demands for the wireless technologies like a low energy consumption
Thomas M. Wendt   +5 more
core   +1 more source

An Energy Autonomous Microneedle Array‐Based Sensing System for Continuous Biomarker Monitoring

open access: yesAdvanced Science, EarlyView.
This work presents an innovative self‐powered wearable biosensor system for real‐time monitoring of multiple biomarkers in interstitial fluid. The device integrates stainless steel‐based minimally invasive microneedles with ion‐selective membranes, enabling simultaneous Na+, K+, Ca2+, pH, and glucose detection.
Arnab Pal   +9 more
wiley   +1 more source

Full‐Stack Architectures for Intelligent Brain‐Computer Interfaces

open access: yesAdvanced Science, EarlyView.
System‐level overview of brain–computer interfaces (BCIs), illustrating the integration of neural signal acquisition, wireless transmission, and adaptive decoding. Advanced electrode, tissue interfaces, energy‐efficient communication, and robust algorithms collectively enable stable signal quality, real‐time processing, and closed‐loop operation ...
Hee Kyu Lee   +9 more
wiley   +1 more source

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