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Open AccessArticle

A Methodology for Choosing Time Synchronization Strategies for Wireless IoT Networks

B105 Electronic Systems Lab, ETSI Telecomunicación, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain
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Sensors 2019, 19(16), 3476; https://doi.org/10.3390/s19163476
Received: 30 June 2019 / Revised: 31 July 2019 / Accepted: 7 August 2019 / Published: 9 August 2019
(This article belongs to the Special Issue Topology Control and Protocols in Sensor Network and IoT Applications)
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Abstract

The wireless Internet of Things (IoT) family grows without interruption. Every day more applications and wireless devices are available to interconnect and help solve multiple problems in areas such as health, critical infrastructure, industry, etc. Many of the tasks to be performed by the IoT network require time synchronization for their correct operation, either to use the spectrum more efficiently, to add data from different sensors, or to carry out coordinated communications. Each of these applications has different requirements regarding time synchronization. This means that the decision of which strategy to follow to synchronize an IoT end device becomes a task that requires important prior analysis and usually, if developers are experts in the topic, ends with the implementation of an ad hoc solution. In this article, we present a methodology to choose an adequate time-synchronization strategy for any wireless IoT application. We also present a tool that executes the methodology, guiding the IoT application developer through some input forms. This combination of methodology and tool abstracts developers from the complexities of time-synchronization strategies, allowing them to choose the correct strategy regardless of their level of knowledge in wireless IoT time synchronization. As a result, the methodology offers a set of time-synchronization strategies that are adjusted to the needs of developers and applications. View Full-Text
Keywords: methodology; time synchronization; IoT methodology; time synchronization; IoT
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Tirado-Andrés, F.; Rozas, A.; Araujo, A. A Methodology for Choosing Time Synchronization Strategies for Wireless IoT Networks. Sensors 2019, 19, 3476.

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