Author(s)

Esraa A. Makled¹, Hassan H. Halawa¹, Ramez M. Daoud¹, Hassanein H. Amer^1*, Tarek K. Refaat²

¹Electronics and Communications Engineering Department, American University in Cairo (AUC), Cairo, Egypt.
²School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, Canada.

This paper investigates the performability of hierarchical Wireless Networked Control Systems (WNCS). The WNCS studied can operate in two modes: passive supervisor and active supervisor. It is first shown that the Markov models for both modes are identical. Performability models are then developed and a case study shows how to use these models to help make design decisions. More specifically, it is observed that the performability of a passive supervisor system increases in time while that of an active supervisor system decreases in time.

Performability, CTMC, Fault-Tolerance, Wireless Networked Control Systems, Hierarchical Networks, IEEE 802.11

Makled, E. , Halawa, H. , Daoud, R. , Amer, H. and Refaat, T. (2015) On the Performability of Hierarchical Wireless Networked Control Systems. Intelligent Control and Automation, 6, 126-133. doi: 10.4236/ica.2015.62013.