The Community for Technology Leaders
2009 Sixth International Conference on Broadband Communications, Networks, and Systems. Broadnets 2009 (2009)
Madrid
Sept. 14, 2009 to Sept. 16, 2009
ISSN: 2150-4903
ISBN: 978-963-9799-49-3
pp: 1-8
Nina Skorin-Kapov , Dept. of Telecommunications, Faculty of Electrical, Engineering and Computing (FER), University of Zagreb, Croatia
Pablo Pavon-Marino , Dept. of Information and Communication Technology, Technical University of Cartagena, (UPCT), Spain
Belen Garcia-Manrubia , Dept. of Information and Communication Technology, Technical University of Cartagena, (UPCT), Spain
Ramon Aparicio-Pardo , Dept. of Information and Communication Technology, Technical University of Cartagena, (UPCT), Spain
ABSTRACT
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.
INDEX TERMS
optical fibre networks, telecommunication network topology, telecommunication traffic
CITATION

N. Skorin-Kapov, P. Pavon-Marino, B. Garcia-Manrubia and R. Aparicio-Pardo, "Scheduled Virtual Topology Design under periodic traffic in transparent optical networks," 2009 Sixth International Conference on Broadband Communications, Networks, and Systems. Broadnets 2009(BROADNETS), Madrid, 2009, pp. 1-8.
doi:10.4108/ICST.BROADNETS2009.7120
80 ms
(Ver 3.3 (11022016))