TY - JOUR 
A1 - Skorin-Kapov , Nina
AU - Pavón Mariño, Pablo
AU - Aparicio Pardo, Ramón
AU - García Manrubia, María Belén
T1 - Scheduled virtual topology design under periodic traffic in transparent optical networks
Y1 - 2009
UR - http://hdl.handle.net/10317/1532
AB - This paper investigates offline planning and scheduling in transparent optical networks for a given periodic traffic demand. The main objective is to minimize the number of transceivers needed which make up for the main network cost. We call this problem ldquoScheduled Virtual Topology Designrdquo and consider two variants: non-reconfigurable and reconfigurable equipment. We formulate both problems as exact MILPs (Mixed Integer Linear Programs). Due to their high complexity, we propose a more scalable tabu search heuristic approach, in conjunction with smaller MILP formulations for the associated subproblems. The main motivation of our research efforts is to assess the benefits of using reconfigurable equipment, realized as a reduction in the number of required transceivers. Our results show that the achieved reductions are not very significant, except for cases with large network loads and high traffic variability.
KW - Ingeniería Telemática
KW - Redes ópticas
KW - Diseño virtual de la topología
KW - Optimización multicapa
KW - Programación
KW - Búsqueda tabú
KW - All-optical networks
KW - Virtual topology design
KW - Multilayer optimization
KW - Scheduling
KW - Tabu search
LA - eng
PB - Institute Electrical and Electronics Engineers. (IEEE)
ER -