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Título del libro: 6th International Conference On Soft Computing And Intelligent Systems, And 13th International Symposium On Advanced Intelligence Systems, Scis/isis 2012
Título del capítulo: Fault tolerant scheduling strategy in a NCS based on frequency transition

Autores UNAM:
OSCAR ALEJANDRO ESQUIVEL FLORES; HECTOR BENITEZ PEREZ;
Autores externos:

Idioma:
Inglés
Año de publicación:
2012
Palabras clave:

Communication media; Fault tolerant scheduling; Fault-tolerant real-time systems; Frequency transition; Hard real-time systems; Real-time tasks; Reliability constraints; Scheduling strategies; Intelligent systems; Networked control systems; Optimization; Scheduling; Soft computing; Real time systems


Resumen:

A hard real-time system is subject to timing and reliability constraints. In fault-tolerant real-time systems, tasks have deadlines to be met despite of the presence of fault. In this context primary-backup scheme has been one of the most important algorithm employed for fault-tolerant scheduling for real-time tasks. Each task has primary version and backup version and the versions must be scheduled on different processors. Commonly, this method has been used guaranteeing compliance with the primary tasks and backup without considering the optimal use of the communication media in networked control systems. In this paper a scheduling strategy is proposed based on frequency transition which uses primary-backup for tolerating faults considering the optimal use of network. © 2012 IEEE.


Entidades citadas de la UNAM: