ecoSync: An Energy-Efficient Clock Discipline Data Synchronization in Wi-Fi IoMT Systems

The growth of the Internet of Medical Things (IoMT) and healthcare data analytics allows wearable Wireless Body Area Networks (WBANs) and ambient sensors to collect the large quantities of physiological signals necessary for better patient diagnostics and treatments. Artificial intelligence and mach...

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Main Authors: Steven Puckett, Emil Jovanov
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/12/20/4226
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author Steven Puckett
Emil Jovanov
author_facet Steven Puckett
Emil Jovanov
author_sort Steven Puckett
collection DOAJ
description The growth of the Internet of Medical Things (IoMT) and healthcare data analytics allows wearable Wireless Body Area Networks (WBANs) and ambient sensors to collect the large quantities of physiological signals necessary for better patient diagnostics and treatments. Artificial intelligence and machine learning algorithms frequently require precisely synchronized signals from multiple sensors, which in turn require time-consuming and energy-inefficient synchronization methods with constant wireless network connectivity. We propose ecoSync, a highly energy-efficient time synchronization algorithm for Wi-Fi devices in IoMT applications. We demonstrated that ecoSync can correct the time difference error to ±42 µs with an hour between resynchronizations, using only 658 millijoules of energy. This is an 87% improvement in time difference error and a 99.93% reduction in energy usage over using TSF for synchronization alone over a 1 h period. Wireless synchronization of sensors allows placement of physiological sensors on objects of everyday use (Smart Stuff), which in turn allows seamless collection of physiological status data every time we interact with smart objects in an IoMT environment.
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spelling doaj.art-1e9ca413d4db4a36a7144d8e0acd17792023-11-19T16:18:37ZengMDPI AGElectronics2079-92922023-10-011220422610.3390/electronics12204226ecoSync: An Energy-Efficient Clock Discipline Data Synchronization in Wi-Fi IoMT SystemsSteven Puckett0Emil Jovanov1Sanders College of Business, University of North Alabama, Florence, AL 35632, USACollege of Engineering, University of Alabama at Huntsville, Huntsville, AL 35899, USAThe growth of the Internet of Medical Things (IoMT) and healthcare data analytics allows wearable Wireless Body Area Networks (WBANs) and ambient sensors to collect the large quantities of physiological signals necessary for better patient diagnostics and treatments. Artificial intelligence and machine learning algorithms frequently require precisely synchronized signals from multiple sensors, which in turn require time-consuming and energy-inefficient synchronization methods with constant wireless network connectivity. We propose ecoSync, a highly energy-efficient time synchronization algorithm for Wi-Fi devices in IoMT applications. We demonstrated that ecoSync can correct the time difference error to ±42 µs with an hour between resynchronizations, using only 658 millijoules of energy. This is an 87% improvement in time difference error and a 99.93% reduction in energy usage over using TSF for synchronization alone over a 1 h period. Wireless synchronization of sensors allows placement of physiological sensors on objects of everyday use (Smart Stuff), which in turn allows seamless collection of physiological status data every time we interact with smart objects in an IoMT environment.https://www.mdpi.com/2079-9292/12/20/4226IoMTsynchronizationWi-FiTSFPTPclock relation model
spellingShingle Steven Puckett
Emil Jovanov
ecoSync: An Energy-Efficient Clock Discipline Data Synchronization in Wi-Fi IoMT Systems
Electronics
IoMT
synchronization
Wi-Fi
TSF
PTP
clock relation model
title ecoSync: An Energy-Efficient Clock Discipline Data Synchronization in Wi-Fi IoMT Systems
title_full ecoSync: An Energy-Efficient Clock Discipline Data Synchronization in Wi-Fi IoMT Systems
title_fullStr ecoSync: An Energy-Efficient Clock Discipline Data Synchronization in Wi-Fi IoMT Systems
title_full_unstemmed ecoSync: An Energy-Efficient Clock Discipline Data Synchronization in Wi-Fi IoMT Systems
title_short ecoSync: An Energy-Efficient Clock Discipline Data Synchronization in Wi-Fi IoMT Systems
title_sort ecosync an energy efficient clock discipline data synchronization in wi fi iomt systems
topic IoMT
synchronization
Wi-Fi
TSF
PTP
clock relation model
url https://www.mdpi.com/2079-9292/12/20/4226
work_keys_str_mv AT stevenpuckett ecosyncanenergyefficientclockdisciplinedatasynchronizationinwifiiomtsystems
AT emiljovanov ecosyncanenergyefficientclockdisciplinedatasynchronizationinwifiiomtsystems