J4 ›› 2012, Vol. 39 ›› Issue (5): 148-153.doi: 10.3969/j.issn.1001-2400.2012.05.025

• Original Articles • Previous Articles     Next Articles

Conditional diagnosability algorithm for hypercube under the PMC model

ZHANG Liguo1;DU Huimin2;HAN Jungang1,2   

  1. (1. School of Microelectronic, Xidian Univ., Xi'an  710071, China;
    2. School of Electronic Engineering, Xi'an Univ. of Posts & Telecommunications, Xi'an  710121, China)
  • Received:2011-06-03 Online:2012-10-20 Published:2012-12-13
  • Contact: ZHANG Liguo E-mail:zhanglg@xupt.edu.cn

Abstract:

Diagnosis has played an important role in the reliability of the interconnection network. Conditional diagnosability is the method that assumes that none of the neighbors of any vertex in the system are faulty at the same time. This diagnosis method greatly enhances the effectiveness of the diagnosis. A conditional diagnosability algorithm for the hypercube based on the PMC model is proposed in the paper. The nodes of the hypercube are divided into several sets through the diagnosis result between two adjacent nodes, and faulty sets and fault-free sets are identified through the realation among sets and the number of elements in the set. The conditional diagnosability of faulty nodes can be effectively implemented when the number of the faulty nodes do not exceed 4(n-2)+1(n≥5). The time complexity of the algorithm is O(N2)for the n-dimensional hypercube with N nodes.

Key words: hypercube, PMC model, conditional diagnosability, diagnosability algorithm

CLC Number: 

  • 中图分类号:TP303