GORA: An algorithm for designing optical cross-connect nodes with improved dependability

Edward Mutafungwa*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

This paper considers the problem of enhancing the dependability (availability and its influencing factors) of optical cross connect nodes. These nodes are expected to be a crucial part of future optical communication networks. The genetic optimum redundancy allocation (GORA) algorithm proposed here is based on a hybrid genetic algorithm and solves the dependability enhancement problem by optimizing the allocation of redundant modules in the nodes. Three redundancy schemes are considered: (1) global duplicate (2) local standby and (3) k-out-of-n:G redundancy. After applying the GORA algorithm to four example nodes, the optimized third redundancy scheme provided the overall best dependability performance. This suggests that redundancy is more effective when provided at the OXN subsystem level. Further capabilities of the GORA algorithm as a network planning tool also presented and some improvements are proposed.

Original languageEnglish
Pages (from-to)1454-1464
Number of pages11
JournalComputer Communications
Volume25
Issue number16
DOIs
Publication statusPublished - 1 Oct 2002
MoE publication typeA1 Journal article-refereed

Keywords

  • Dependability
  • Genetic algorithms
  • Optical cross-connects
  • Optical networks

Fingerprint

Dive into the research topics of 'GORA: An algorithm for designing optical cross-connect nodes with improved dependability'. Together they form a unique fingerprint.

Cite this