Naslov
Event-triggered Scheduling for Stochastic Multi-loop Networked Control Systems with Packet Dropouts

Autori
Mamduhi, Mohammad Hossein ; Tolić, Domagoj ; Molin, Adam ; Hirche, Sandra

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proc. of 53rd IEEE Conference on Decision and Control / - , 2014, 2776-2782

Skup
The 53rd IEEE Conference on Decision and Control

Mjesto i datum
Los Angeles (CA), Sjedinjene Američke Države, 15.12.2014. - 17.12.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
networked control systems; communication networks; stochastic systems

Sažetak
In this paper, we study event-triggered data scheduling for stochastic multi-loop control systems communicating over a shared network with communication uncertainties. We introduce a novel dynamic scheduling scheme which allocates the channel access according to an error-dependent policy. The scheduler deterministically excludes subsystems with lower error values from the medium access competition in favor of those with larger errors. Subsequently, the scheduler probabilistically allocates the communication resource to the eligible subsystems. We model the overall network-induced error as a homogeneous Markov chain and show its boundedness in expectation over a multi time-step horizon. In addition, an analytical initial-state-independent upper bound for the associated average cost is derived. Furthermore, we show that our proposed policy is robust against packet dropouts. Finally, the numerical results demonstrate a significant performance improvement in terms of error level in comparison with the periodic and random access scheduling policies.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA