Cycles embedding in hypercubes with node failures

  • Authors:
  • Chang-Hsiung Tsai

  • Affiliations:
  • Institute of Learning Technology, National Hualien University of Education, Hualien 970, Taiwan, ROC

  • Venue:
  • Information Processing Letters
  • Year:
  • 2007

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Abstract

The hypercube has been widely used as the interconnection network in parallel computers. The n-dimensional hypercube Q"n is a graph having 2^n vertices each labeled with a distinct n-bit binary strings. Two vertices are linked by an edge if and only if their addresses differ exactly in the one bit position. Let f"v denote the number of faulty vertices in Q"n. For n=3, in this paper, we prove that every fault-free edge and fault-free vertex of Q"n lies on a fault-free cycle of every even length from 4 to 2^n-2f"v inclusive even if f"v=