Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

GMPLS/PCE Control of Flexi-Grid DWDM Optical Networks Using CO-OFDM Transmission [Invited]

Not Accessible

Your library or personal account may give you access

Abstract

Current optical transport networks use optical channel carriers (wavelengths) that are defined and constrained by a fixed ITU-T dense wavelength division multiplexing (DWDM) grid. Such a grid is not adapted to high data rates (beyond 100 Gb/s) and is inefficient when a wavelength is assigned to a low-rate optical signal. Consequently, the ITU-T is updating the set of DWDM reference frequencies with the inclusion of a smaller channel spacing (e.g., 6.25 GHz) while allowing the allocation of frequency slots, that is, variable-sized frequency ranges composed of a number of slices. In this paper, we propose the design, implementation, and experimental validation of a Generalized Multi-Protocol Label Switching/path computation element (GMPLS/PCE) control plane for such flexible optical networks, using optical orthogonal frequency division multiplexing transmission technology, given its unique flexibility, bit-rate/bandwidth scalability, and subwavelength granularity. The control plane uses a distance-adaptive and PCE-based routing and modulation assignment, combined with distributed frequency slot (spectrum) selection. A comparative analysis of path computation algorithms is carried out, highlighting the benefits of extending the path computation function with the knowledge of the status of the slices and the spectral efficiency of the modulation formats.

©2012 Optical Society of America

Full Article  |  PDF Article
More Like This
SDN Orchestration of OpenFlow and GMPLS Flexi-Grid Networks With a Stateful Hierarchical PCE [Invited]

Ramon Casellas, Raül Muñoz, Ricardo Martínez, Ricard Vilalta, Lei Liu, Takehiro Tsuritani, Itsuro Morita, Víctor López, Oscar González de Dios, and Juan Pedro Fernández-Palacios
J. Opt. Commun. Netw. 7(1) A106-A117 (2015)

Control and Management of Flexi-grid Optical Networks With an Integrated Stateful Path Computation Element and OpenFlow Controller [Invited]

Ramon Casellas, Ricardo Martínez, Raül Muñoz, Ricard Vilalta, Lei Liu, Takehiro Tsuritani, and Itsuro Morita
J. Opt. Commun. Netw. 5(10) A57-A65 (2013)

GMPLS/PCE-Controlled Multi-Flow Optical Transponders in Elastic Optical Networks [Invited]

Ricardo Martínez, Ramon Casellas, Ricard Vilalta, and Raül Muñoz
J. Opt. Commun. Netw. 7(11) B71-B80 (2015)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved