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Network Synthesis Problems

  • Christelle Wynants

Part of the Combinatorial Optimization book series (COOP, volume 8)

Table of contents

  1. Front Matter
    Pages i-xix
  2. Christelle Wynants
    Pages 1-9
  3. Christelle Wynants
    Pages 11-29
  4. Christelle Wynants
    Pages 31-82
  5. Christelle Wynants
    Pages 83-133
  6. Christelle Wynants
    Pages 179-190
  7. Christelle Wynants
    Pages 191-192
  8. Back Matter
    Pages 193-207

About this book

Introduction

As the telecommunication industry introduces new sophisticated technologies, the nature of services and the volume of demands have changed. Indeed, a broad range of new services for users appear, combining voice, data, graphics, video, etc. This implies new planning issues. Fiber transmission systems that can carry large amounts of data on a few strands of wire were introduced. These systems have such a large bandwidth that the failure of even a single transmission link: in the network can create a severe service loss to customers. Therefore, a very high level of service reliability is becoming imperative for both system users and service providers. Since equipment failures and accidents cannot be avoided entirely, networks have to be designed so as to "survive" failures. This is done by judiciously installing spare capacity over the network so that all traffic interrupted by a failure may be diverted around that failure by way of this spare or reserve capacity. This of course translates into huge investments for network operators. Designing such survivable networks while minimizing spare capacity costs is, not surprisingly, a major concern of operating companies which gives rise to very difficult combinatorial problems. In order to make telecommunication networks survivable, one can essentially use two different strategies: protection or restoration. The protection approach preas­ signs spare capacity to protect each element of the network independently, while the restoration approach spreads the redundant capacity over the whole network and uses it as required in order to restore the disrupted traffic.

Keywords

Mathematica Synchrone Digitale Hierarchie combinatorial optimization communication complexity networks operations research optimization telecommunication telecommunications

Authors and affiliations

  • Christelle Wynants
    • 1
  1. 1.Service de Mathématiques de la Gestion, Institut de Statistique et de Recherche OpérationnelleUniversité Libre de BruxellesBrusselsBelgium

Bibliographic information

  • DOI https://doi.org/10.1007/978-1-4757-3349-5
  • Copyright Information Springer-Verlag US 2001
  • Publisher Name Springer, Boston, MA
  • eBook Packages Springer Book Archive
  • Print ISBN 978-1-4419-4843-4
  • Online ISBN 978-1-4757-3349-5
  • Series Print ISSN 1388-3011
  • Buy this book on publisher's site