Du är här

Design of wide-area communication networks with backup path restoration using path generation technique

Backup path restoration using path generation technique
Författare:
Publiceringsår: 2003
Språk: Engelska
Sidor: 77-84
Publikation/Tidskrift/Serie: Proceedings. 4th International Workshop on the Design of Reliable Communication Networks (DRCN 2003)
Dokumenttyp: Konferensbidrag
Förlag: IEEE

Sammanfattning

In this work, we study a flow restoration based network design problem where we assume the knowledge of possible failure situations. We use the idea of a situation disjoint path pair (nominal path, backup path) which are constructed in such a way that at least one of them is operational in any given failure situation for a flow. We present an approximate linear programming formulation of the problem and show how path generation technique (based on column generation) can be used to solve it. The path generation approach is an iterative method that allows us to add new path pairs based on dual Lagrangean multipliers in every iteration. We consider four different scenarios that differ in the way we compute and add new path pairs at every iteration. We present the results of our approach for an example network. From our observations, we conclude that path generation approach is an effective method to solve the backup path restoration design problem.

Disputation

Nyckelord

  • Technology and Engineering
  • linear programming
  • telecommunication network routing
  • iterative methods

Övriga

4th International Workshop on the Design of Reliable Commuication Networks DRCN 2007
2003-10-19/2003-10-22
Banff, Alberta, Canada
Published
Yes
  • ISBN: 0-7803-8118-1

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

 

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen