Multi-faults re-restoration algorithm based on fuzzy set theory in optical transport networks

Author

Yang Wang ; Xin Li ; Yongli Zhao ; Jie Zhang

Author_Institution

China Electr. Power Res. Inst., Beijing, China

fYear

2014

fDate

9-10 Nov. 2014

Firstpage

1

Lastpage

4

Abstract

In this paper, we propose a novel re-restoration mechanism based on fuzzy fault set under multi-faults in optical transport networks. This new scheme inherits from our already proposed FFS (fuzzy fault set) based restoration mechanism which is a reasonable trade-off between the recovery success rate and the remaining network risk resources. We mainly consider the link faults in the simulation because link is likely to fail. The survival restoration scheme is divided into two phase: restoration phase and re-restoration phase. The re-restoration phase aims at restoring more DLPs (damaged light paths) by rerouting a small number of already established light paths. The proposed re-restoration mechanism can further improve recovery success rate which has been verified by simulations on the energy efficient multi-domain WSON (wavelength switched optical network) test bed.

Keywords

energy conservation; fuzzy set theory; optical fibre networks; telecommunication network reliability; DLP restoration; damaged light paths; energy efficient multidomain WSON; fuzzy fault set; fuzzy set theory; multifaults re-restoration algorithm; network risk resources; optical transport networks; restoration phase; wavelength switched optical network; Network topology; Optical fiber networks; Optical interferometry; Optical switches; Protocols; Telecommunication traffic; Topology; Fuzzy set theory; Multi-faults; Optical transport networks; Restoration;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communications and Networks (ICOCN), 2014 13th International Conference on

Conference_Location

Suzhou

Type

conf

DOI

10.1109/ICOCN.2014.6987127

Filename

6987127