Autonomous Energy Status Sharing and Synchronization for Batteryless Sensor Networks

Torrisi, Alessandro; Yıldırım, Kasım Sinan; Brunelli, Davide

doi:10.1145/3485730.3493360

Cited by 4 publications

(1 citation statement)

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“…A few systemlevel synchronization studies, which are relevant to this paper, are reported in the optical bands. In [9], a design that combines visible light communication (VLC) and RF backscatter into a self-powered autonomous circuit is given for frequency synchronization, not for TS. In [10], a time synchronization method is proposed using non-line-of-sight VLC to synchronize all the transmitters that will form a beamspot to serve the same receiver.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Over-the-Air Time Synchronization for Industrial LiFi Networks

Ozyurt

Popoola

2023

2023 IEEE Wireless Communications and Networking Conference (WCNC)

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This paper analyzes a new and accurate overthe-air time synchronization (TS) method for industrial LiFi networks which achieves synchronization via the exchange of timestamps between nodes. The necessity for accurate TS will become increasingly important with future networks due to its connection with industrial applications. Over-the-air TS vision is to achieve accuracy of the order of 1 µs. In this technique, timestamps are transmitted using optical signals which are used for the estimation of the time-of-arrival (TOA). To this end, the Cramer-Rao Lower Bound (CRLB) is computed as the theoretical limit on the performance and accuracy. In this way, the effects of distance, optical power, and semi-angle at half illuminance of the transmitter are investigated. Calculations and comparison show that the proposed technique can be efficiently used for TS in future wireless networks.

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Section: Introductionmentioning

confidence: 99%