Journal
APPLIED MATHEMATICS AND COMPUTATION
Volume 225, Issue -, Pages 366-371Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.amc.2013.09.063
Keywords
PMC diagnosis model; t/k-diagnosability; BC networks; Reliability; Fault tolerance
Categories
Funding
- NSFC [11301371]
- Natural Sciences Foundation of Guangxi Province [2012GXNSFBA053005]
- Natural Science Foundation of Fujian Province [2012J05012]
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To increase the degree of the diagnosability of a system under system-level diagnosis strategies, Somani and Peleg introduced a measure, so called t/k-diagnosis strategy, in which the identified fault-set is allowed to contain at most k fault-free processors. Using this diagnosis strategy, the degree of diagnosability of the BC graphs ( include hypercubes, crossed cubes, Mobius cubes, and twisted cubes, etc. as the subfamily) increases greatly as the number of the fault-free processors in the fault-set increases for 1 <= k <= n. In this paper, we extend the result in [6] on the t/k-diagnosability of BC graphs for 1 <= k <= n by showing that every n-dimensional BC graph is t(n, k)/k-diagnosable when n >= 5 and n + 1 <= k <= 2n - 1, where t(n, k) = -1/2 (k + 1)(2) + (2n - 3/2) (k + 1) (n(2) - 2) for n + 1 <= k <= 2n - 1. The result implies the crossed cube, the Mobius cube, the twisted cube and the hypercube have the same t/k-diagnosability. (C) 2013 Elsevier Inc. All rights reserved.
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