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Optimal Design of a Data-Offload Network

Author

Listed:
  • John F. Shortle

    (Systems Engineering and Operations Research, George Mason University, 4400 University Drive, MS 4A6, Fairfax, Virginia 22030)

  • Dennis C. Dietz

    (Qwest Communications International, 4001 Discovery Drive, Suite 130, Boulder, CO 80303)

  • Paul A. Katz

    (Qwest Communications International)

  • Craig B. Williamson

    (4139 West 35th Avenue, Denver, Colorado 80212)

  • James R. Koehler

    (Genomica Corporation, 1745 38th Street, Boulder, Colorado 80301)

  • Amie J. Elcan

    (Qwest Communications International)

Abstract

Internet traffic causes much congestion on the public switched-telephone network. One way to relieve congestion is to transfer (or offload) Internet calls to a separate data network. We developed an integer programming model that optimizes the locations and capacities of the offload equipment to transfer data traffic at minimum cost. We employed an interactive tool based on the model to design and expand metropolitan data-offload networks. This saves Qwest an estimated $1.5 million over manual designs and reduces expected call blocking by 25 percent.

Suggested Citation

  • John F. Shortle & Dennis C. Dietz & Paul A. Katz & Craig B. Williamson & James R. Koehler & Amie J. Elcan, 2001. "Optimal Design of a Data-Offload Network," Interfaces, INFORMS, vol. 31(5), pages 4-12, October.
  • Handle: RePEc:inm:orinte:v:31:y:2001:i:5:p:4-12
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    File URL: http://dx.doi.org/10.1287/inte.31.5.4.9652
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