Title
Pre-Adjustment Rerouting For Wavelength Defragmentation In Optical Transparent Wdm Networks
Abstract
We propose a new extension to reconfiguration algorithms used to address wavelength defragmentation to enhance the path accommodation efficiency in optical transparent wavelength division multiplexing networks. The proposed algorithm suppresses the number of fibers employed to search for a reconfigurable wavelength channel by combining routes between the target path and the existing path in a reconfigured wavelength channel. This paper targets three main phases in reconfiguration: i) the reconfiguration trigger; ii) redesign of the wavelength path; and iii) migrating the wavelength paths. The proposed and conventional algorithms are analyzed from the viewpoints of the number of fibers, accommodation rate and the number of migrating sequences. Numerical evaluations show that the number of fibers is suppressed by 9%, and that the accommodation efficiency is increased by approximately 5%-8% compared to when reconfiguration is not performed.
Year
DOI
Venue
2015
10.1587/transcom.E98.B.2014
IEICE TRANSACTIONS ON COMMUNICATIONS
Keywords
Field
DocType
optical transparent wdm networks, reconfiguration, defragmentation
Wavelength-division multiplexing,Computer science,Defragmentation,Computer network,Wavelength,Control reconfiguration
Journal
Volume
Issue
ISSN
E98B
10
1745-1345
Citations 
PageRank 
References 
0
0.34
8
Authors
5
Name
Order
Citations
PageRank
Akihiro Kadohata111.74
A. Watanabe219930.71
Akira Hirano322235.12
Hiroshi Hasegawa41815.70
Ken-ichi Sato52217.17