By Topic

User-Perceived Reliability of Shared Protection Systems with a Finite Number of Repairers

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Ozaki, H. ; Broadband Networks Oper. Unit, NEC Corp., Abiko, Japan ; Kara, A. ; Zixue Cheng

In this paper we investigate the user-perceived availability and Mean Time to Failure (MTTF) of M-for-N shared protection systems with a finite number of repairers. We assume that there are M backup units, N mutually independent users' (working) units, and C repairers (1 les Cles M + N)We investigate a Markov-chain model (with failure rate lambda per unit, repair rate mu per repairer) that is subject to an FCFS (First Come, First Served) protection switching and FCFS unit re-housing discipline. When a working unit fails, the service for the user of the unit is protected by one of the M protection units if available. If the service is not protected, the user enters a queue waiting for the service restoration. On the other hand, a failed unit immediately enters another queue waiting for repairs. Namely, there are two kinds of queues in the system. An analysis based on state transition diagrams gives a closed-form solution of the user-perceived availability and a recurrence computation method of the use-perceived MTTF. Our numerical examples reveal the effects of the number of repairers.

Published in:

Computer and Information Technology, 2009. CIT '09. Ninth IEEE International Conference on  (Volume:2 )

Date of Conference:

11-14 Oct. 2009