Publication details

General Solutions for MTTF and Steady-State Availability of NMR Systems



Year of publication 2014
Type Article in Proceedings
Conference Reconfigurable and Communication-Centric Systems-on-Chip (ReCoSoC), 2014 9th International Symposium on
MU Faculty or unit

Faculty of Informatics

Field Informatics
Keywords NMR systems; Mean time to failure; Steady state availability; Markov models; General solutions.
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Description Voting redundancy is a well-known technique to improve the fault tolerance of digital systems. Calculation of reliability and availability is a necessary part of every fault tolerant system design. Conventional techniques, including block diagram method, are unsuccessful when there is dependent failure, repair, or standby operation in the system. Use of Markov models also almost fails when system is composed of many elements or is repairable. However, the alternatives to reliability and availability, i.e. mean time to failure and steady state availability, respectively, are easily measurable using Markov graphs. In this paper, novel general form solutions for calculation of mean time to failure and steady-state availability of N-modular redundancy systems are presented.
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