Optimal oblivious routing in polynomial time

  • Authors:
  • Yossi Azar;Edith Cohen;Amos Fiat;Haim Kaplan;Harald Racke

  • Affiliations:
  • Tel Aviv University, Tel Aviv, Israel;AT&T research labs, Florham park, NJ;Tel Aviv University, Tel Aviv, Israel;Tel Aviv University, Tel Aviv, Israel;Heinz Nixdorf Institute and Paderborn University, Paderborn, Germany

  • Venue:
  • Proceedings of the thirty-fifth annual ACM symposium on Theory of computing
  • Year:
  • 2003

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Abstract

A recent seminal result of Racke is that for any network there is an oblivious routing algorithm with a polylog competitive ratio with respect to congestion. Unfortunately, Racke's construction is not polynomial time. We give a polynomial time construction that guarantee's Racke's bounds, and more generally gives the true optimal ratio for any network.