Compact routing for graphs excluding a fixed minor

  • Authors:
  • Ittai Abraham;Cyril Gavoille;Dahlia Malkhi

  • Affiliations:
  • School of Computer Science and Engineering, The Hebrew University of Jerusalem, Jerusalem, Israel;Laboratoire Bordelais de Recherche en Informatique, University of Bordeaux, Bordeaux, France;School of Computer Science and Engineering, The Hebrew University of Jerusalem, Jerusalem, Israel

  • Venue:
  • DISC'05 Proceedings of the 19th international conference on Distributed Computing
  • Year:
  • 2005

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Abstract

This paper concerns compact routing schemes with arbitrary node names. We present a compact name-independent routing scheme for unweighted networks with n nodes excluding a fixed minor. For any fixed minor, the scheme, constructible in polynomial time, has constant stretch factor and requires routing tables with poly-logarithmic number of bits at each node. For shortest-path labeled routing scheme in planar graphs, we prove an Ω(nε) space lower bound for some constant ε 0. This lower bound holds even for bounded degree triangulations, and is optimal for polynomially weighted planar graphs (ε=1/2).