Text

Wavelength Defragmentation for Seamless Migration

Dynamic traffic in optical networks leads to spectrum fragmentation, which significantly reduces network performance, i.e., increases blocking rate and reduces spectrum usage. Telecom operators face the operational challenge of operating non-disruptive defragmentation, i.e., within the make-before-break (MBB) paradigm when dealing with lightpath rerouting in wavelength division multiplexed fixed-grid optical networks. In this paper, we propose an MBB routing and wavelength assignment defragmentation process, which provides the best possible lightpath network provisioning, i.e., with minimum bandwidth requirement. We tested extensively the models and algorithms we propose on four network topologies with different grade of service defragmentation triggering events. We observe that, for a given throughput, the spectrum usage of the best MBB lightpath rerouting is always less than 2.5% away from that of an optimal lightpath provisioning.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.37 No.17, September 1, 2019

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 4382 - 4393

Bahasa

English

ISBN/ISSN

-

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

ROUTING AND WAVELENGTH ASSIGNMENT
NETWORK RECONFIGURATION
FRAGMENTED NETWORK
MAKE-BEFORE-BREAK REROUTING
SEAMLESS DEFRAGMENTATION
WAVELENGTH DEFRAGMENTATION

Info Detail Spesifik

-

Pernyataan Tanggungjawab

Brigitte Jaumard, Hamed Pouya, David Coudert

Versi lain/terkait

Lampiran Berkas

Komentar