An extended star graph: a proposal of a new network topology and its fundamental properties

  • Authors:
  • Satoru Watanabe;Satoshi Okawa

  • Affiliations:
  • Graduate Department of Computer Systems, the University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu City, Fukushima 965-8580, Japan.;Graduate Department of Computer Systems, the University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu City, Fukushima 965-8580, Japan

  • Venue:
  • International Journal of Computational Science and Engineering
  • Year:
  • 2006

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Abstract

In the past years, various network architectures for parallelcomputers have been proposed, for example, hyper cubes or stargraphs. These classes of networks are known as Cayley graphs. Inrecent years, there have been some proposals of new families ofinterconnection networks, namely, constant degree networks. In thispaper, a new interconnection network named extended star graphs isproposed, and it is proved that the extended star graphs havehypercube structure. We also provide a routing algorithm fornode-to-node communication on extended star graphs. Based on thealgorithm, we obtain an upper bound 2n-1 on the diameter for then-th order extended star graph.