Abstract

The exponential traffic growth in optical networks has triggered the evolution from fixed-grid to flex-grid technology. This evolution allows better spectral efficiency and spectrum usage over current optical networks in order to facilitate huge dynamic traffic demands. The promise of flex-grid technology in terms of increasing the number of optical channels established over optical links, however, may not be sustainable because of the associated increase in optical amplification power. In this work, we detail a power control process that takes advantage of link optical power and channel optical signal-to-noise ratio (OSNR) margins to allow network operators to support this optical power increase while maintaining the use of legacy optical amplifiers. New generalized multiprotocol label switching (GMPLS) protocol extensions are proposed on which to integrate the optical power control process in the control plane. The performance of the process is evaluated in terms of the blocking ratio and network throughput over fixed-grid and flex-grid networks. Results show that controlling optical power benefits from the flex-grid technology in terms of spectrum and capacity gain and reduces optical connection blocking.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Optical Power Control in Translucent Flexible Optical Networks With GMPLS Control Plane

Matthieu Kanj, Esther Le Rouzic, Julien Meuric, and Bernard Cousin
J. Opt. Commun. Netw. 10(9) 760-772 (2018)

Dynamic Restoration With GMPLS and SDN Control Plane in Elastic Optical Networks [Invited]

Alessio Giorgetti, Francesco Paolucci, Filippo Cugini, and Piero Castoldi
J. Opt. Commun. Netw. 7(2) A174-A182 (2015)

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)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (17)

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

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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

Equations (8)

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

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