Multi-Layer Greenfield Re-Grooming with Wavelength Defragmentation

Author

Kadohata, Akihiro ; Hirano, Akira ; Fukutoku, Mitsunori ; Ohara, Takuya ; Sone, Yoshiaki ; Ishida, Osamu

Author_Institution

NTT Network Innovation Labs., NTT Corp., Atsugi, Japan

Volume

16

Issue

4

fYear

2012

fDate

4/1/2012 12:00:00 AM

Firstpage

530

Lastpage

532

Abstract

Flexible network design for multi-granular and quasi-dynamic traffic is important to minimize resource requirements. In the wavelength layer, wavelength blocking must also be reduced to achieve further cost reduction. We propose a novel traffic accommodation scheme based on repetitive Greenfield Re-grooming with Wavelength Defragmentation (GRWD), which is similar to storage-disk defragmentation. Numerical evaluation shows the required minimum number of sets of transport equipment for the proposed scheme.

Keywords

cost reduction; telecommunication traffic; wavelength assignment; wavelength division multiplexing; GRWD; cost reduction; flexible network design; multigranular traffic; multilayer Greenfield regrooming with wavelength defragmentation; quasidynamic traffic; storage-disk defragmentation; traffic accommodation scheme; transport equipment; wavelength blocking; wavelength layer; Equations; Mathematical model; Network topology; Routing; Topology; Transponders; WDM networks; WDM networks; traffic grooming; wavelength assignment; wavelength path;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2012.022112.111855

Filename

6156510