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Interference graphs to monitor and control schedules in low-power WPAN

van der Lee, Tim; Liotta, Antonio; Exarchakos, Georgios

Authors

Tim van der Lee

Antonio Liotta

Georgios Exarchakos



Abstract

Highlights
• This study presents the complete and slotted interference graph model.
• The service uses the complete interference graph to evaluate the network.
• Slotted interference graphs are used to reschedule problematic connections.
• Real-world experiments confirm the validity of both methods.
Abstract
With billions of connected devices in the near future, the major challenge is to develop networks to build an Industrial Internet of Things which is scalable, energy-efficient, reliable and affordable. To this end, low-power wireless personal area networks (LP-WPAN) provide a solution at minimum costs. However, to ensure continuous performance verification, LP-WPAN requires a centrally monitored and controlled service. This work proposes such an edge service, i.e. network monitoring and optimal reconfiguration of scheduled LP-WPANs. The approach is based on a transformation of the schedule into a new model, interference graphs. The interference graphs allow to design evaluation and rescheduling recommender methods to monitor and reconfigure the schedule. An experimental setup was developed to test and validate the approach. The results show that the model and methods provide an accurate representation of the behavior of the network, and that the new rescheduling recommender greatly improves the network's performance, compared to random rescheduling.

Citation

van der Lee, T., Liotta, A., & Exarchakos, G. (2019). Interference graphs to monitor and control schedules in low-power WPAN. Future Generation Computer Systems, 93, 111-120. https://doi.org/10.1016/j.future.2018.10.014

Journal Article Type Article
Acceptance Date Oct 8, 2018
Online Publication Date Oct 19, 2018
Publication Date 2019-04
Deposit Date Jul 29, 2019
Publicly Available Date Aug 6, 2019
Journal Future Generation Computer Systems
Print ISSN 0167-739X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 93
Pages 111-120
DOI https://doi.org/10.1016/j.future.2018.10.014
Keywords interference graphs; low-power wireless personal area networks (LP-WPAN); network monitoring
Public URL http://researchrepository.napier.ac.uk/Output/2006569

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