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Open AccessFeature PaperArticle

Novel Extensions to Enhance Scalability and Reliability of the IEEE 802.15.4-DSME Protocol

by Filippo Battaglia 1,†, Mario Collotta 2,†, Luca Leonardi 1,†, Lucia Lo Bello 1,† and Gaetano Patti 1,*,†
1
Department of Electrical, Electronics and Computer Engineering, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
2
Faculty of Engineering and Architecture, Kore University of Enna, 94100 Enna, Italy
*
Author to whom correspondence should be addressed.
All the authors contributed equally to this work.
Electronics 2020, 9(1), 126; https://doi.org/10.3390/electronics9010126
Received: 12 December 2019 / Revised: 27 December 2019 / Accepted: 6 January 2020 / Published: 9 January 2020
(This article belongs to the Special Issue Emerging Trends in Industrial Communication)
The Deterministic and Synchronous Multichannel Extension (DSME) of the IEEE 802.15.4 standard was designed to fulfill the requirements of commercial and industrial applications. DSME overcomes the IEEE 802.15.4 limitation on the maximum number of Guaranteed Time Slots (GTS) in a superframe and it also exploits channel diversity to increase the communication reliability. However, DSME suffers from scalability problems, as its multi-superframe structure does not efficiently handle GTS in networks with a high number of nodes and periodic flows. This paper proposes the enhanceD DSME (D-DSME), which consists of two extensions that improve the DSME scalability and reliability exploiting a GTS within the multi-superframe to accommodate multiple flows or multiple retransmissions of the same flow. The paper describes the proposed extensions and the performance results of both OMNeT simulations and experiments with real devices implementing the D-DSME. View Full-Text
Keywords: IEEE 802.15.4; DSME; Real-time networks; Industrial Wireless Sensor Networks IEEE 802.15.4; DSME; Real-time networks; Industrial Wireless Sensor Networks
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Battaglia, F.; Collotta, M.; Leonardi, L.; Lo Bello, L.; Patti, G. Novel Extensions to Enhance Scalability and Reliability of the IEEE 802.15.4-DSME Protocol. Electronics 2020, 9, 126.

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