Minimum- and Maximum-Entropy Routing and Spectrum Assignment for Flexgrid Elastic Optical Networking [Invited]
- 15 October 2014
- journal article
- Published by Optica Publishing Group in Journal of Optical Communications and Networking
- Vol. 7 (1) , A66-A72
Abstract
We present two complementary routing and spectrum assignment (RSA) algorithms that use a quantitative fragmentation metric using the concept of Shannon entropy in flexgrid networks. Applying the minimum-entropy (MinEnt) approach to the BT network, support for almost 10% more demands in a static growth scenario is shown. We also present results for a maximum-entropy (MaxEnt) RSA approach, implemented using a genetic algorithm, and operated on the same real BT network topology. The MaxEnt approach avoids fragmentation problems, and it is anticipated that this can increase network utilization.Keywords
Funding Information
- Seventh Framework Programme (FP7) (317999 IDEALIST)
This publication has 3 references indexed in Scilit:
- Experimental assessment of in-operation spectrum defragmentationPhotonic Network Communications, 2014
- Elastic optical networking: a new dawn for the optical layer?IEEE Communications Magazine, 2012
- Simple scheme to enhance the generation probability of the single-photon-added coherent statePhysics Letters A, 2008