Work-In-Progress: Assessing Supply/Demand-Bound Based Schedulability Tests For Wireless Sensor-Actuator Networks

Gaitán, Miguel Gutiérrez; Yoms, Patrick M.; Santo, Pedro M.; Almeida, Luís

doi:10.1109/wfcs47810.2020.9114438

Cited by 2 publications

(1 citation statement)

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“…We use the supply/demand-bound based schedulability analysis in [12] to evaluate the ability of the WSN to satisfy the timing constraints of all flows in the network as in [13]. Specifically, this method checks whether the supply-bound function (sbf) is greater than or equal to the so-called forcedforward demand-bound function (FF-DBF) adapted for WSNs.…”

Section: Performance Modelmentioning

confidence: 99%

Multigateway Designation for Real-Time TSCH Networks Using Spectral Clustering and Centrality

Gaitán

Dujovne

Zuniga

et al. 2023

IEEE Embedded Syst. Lett.

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This letter proposes a multi-gateway designation framework to design real-time wireless sensor networks (WSNs) improving traffic schedulability, i.e., meeting the traffic time constraints. To this end, we resort to Spectral Clustering un-supervised learning that allows defining arbitrary k disjoint clusters without knowledge of the nodes physical position. In each cluster we use a centrality metric from social sciences to designate one gateway. This novel combination is applied to a time-synchronized channel-hopping (TSCH) WSN under earliest-deadline-first (EDF) scheduling and shortest-path routing. Simulation results under varying configurations show that our framework is able to produce WSN designs that greatly reduce the worst-case network demand. In a situation with 5gateways, 99% schedulability can be achieved with 3.5 times more real-time flows than in a random benchmark.

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Section: Performance Modelmentioning

confidence: 99%