%0 Journal Article
%T On the Performability of Hierarchical Wireless Networked Control Systems
%A Esraa A. Makled
%A Hassan H. Halawa
%A Ramez M. Daoud
%A Hassanein H. Amer
%A Tarek K. Refaat
%J Intelligent Control and Automation
%P 126-133
%@ 2153-0661
%D 2015
%I Scientific Research Publishing
%R 10.4236/ica.2015.62013
%X 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.
%K Performability
%K CTMC
%K Fault-Tolerance
%K Wireless Networked Control Systems
%K Hierarchical  Networks
%K IEEE 802.11
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=56383