Embedding of cycles in the faulty hypercube

  • Authors:
  • Sun-Yuan Hsieh

  • Affiliations:
  • Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan

  • Venue:
  • ACSAC'05 Proceedings of the 10th Asia-Pacific conference on Advances in Computer Systems Architecture
  • Year:
  • 2005

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Abstract

Let fv (respectively, fe) denote the number of faulty vertices (respectively, edges) in an n-dimensional hypercube. In this paper, we show that a fault-free cycle of length of at least 2n–2fv can be embedded in an n-dimensional hypercube with fe ≤ n – 2 and fv + fe ≤ 2n – 4. Our result not only improves the previously best known result of Sengupta (1998) where fv 0 or fe ≤ n – 2 and fv + fe ≤ n – 1 were assumed, but also extends the result of Fu (2003) where only the faulty vertices are considered.