Universitat Politècnica de Catalunya
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors
Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques
Universitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla
2014-07-01
The Split Spectrum Approach (SSA) in elastic optical networks is based on splitting a demand into smaller sub-signals when a blocking situation arises, either due to the lack of spectral resources or transmission reach reasons. In this paper, we propose a mechanism based on a Mixed Integer Linear Programming (MILP) formulation for efficiently serving incoming demands in SSA-based elastic optical networks. Moreover, we also present a lightweight heuristic mechanism for scenarios where the MILP mechanism may suffer from scalability issues. The benefits of the proposal are highlighted through illustrative results. Furthermore, we compare two SSA implementations available in the literature in terms of relative transponder cost.
Peer Reviewed
Postprint (published version)
Article
English
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica; Optical communications; Elastic optical networks; Split spectrum; RSA; Efficient; Comunicacions òptiques
http://www.sciencedirect.com/science/article/pii/S1573427714000332
Restricted access - publisher's policy
E-prints [73020]
