AdaptiveHART: An Adaptive Real-Time MAC Protocol for Industrial Internet-of-Things
نویسندگان
چکیده
Wireless sensor–actuator networks (WSAN) for real-time reliable communications are being embraced in the Industrial Internet of Things. One key property required WSAN is adaptability with respect to dynamic environments. Most existing studies assume that a network manager computes global schedules and disseminates schedule information every node whenever parameters need be updated. Such centralized approach may degrade control performance due nonreal-time response In this article, we introduce novel time division multiple access MAC protocol, AdaptiveHART, which updates without dissemination intervals. AdaptiveHART achieves reduction adaptation latency up 74%, maximum schedulable ratio, 75% than conventional WirelessHART. We assess our protocol using stochastic analysis, provides an accurate end-to-end delay distribution schedulability condition can guarantee WSAN.
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ژورنال
عنوان ژورنال: IEEE Systems Journal
سال: 2022
ISSN: ['1932-8184', '1937-9234', '2373-7816']
DOI: https://doi.org/10.1109/jsyst.2022.3171962