2026-04-27T21:40:33Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/623502025-02-21T12:47:04Zcom_10324_1191com_10324_931com_10324_894col_10324_1381

00925njm 22002777a 4500 dc Hosseini, Soheil author Durán Barroso, Ramón José author Miguel Jiménez, Ignacio de author González de Dios, Óscar author Merayo Álvarez, Noemí author Aguado Manzano, Juan Carlos author Echeverry, Edward author Fernández Reguero, Patricia author Lorenzo Toledo, Rubén Mateo author Abril Domingo, Evaristo José author 2022 Multi-band elastic optical network (MB-EON) is a promising technology to extend the bandwidth of the current elastic optical networks in the middle term. The migration from current networks to MB-EONs should be made carefully taking into account both the required cost and the bandwidth requirements. This paper focuses on the necessity of looking for a trade-off between the links to be upgraded during the migration from the standard C-band to the L-band and the acceptable level of capacity increase. Therefore, it makes two contributions to efficiently upgrade current elastic optical networks: firstly, a planning method to decide which fibers should be upgraded to exploit C+L band; and second, one heuristic for solving the routing, band, modulation level, and spectrum assignment (RBMLSA) problem during network operation. Simulation results demonstrate that, thanks to use of these proposals, the upgrade of a set of the fibers could be viewed as a fully convincing middle term solution by the network operators to get around the huge cost of the whole network migration to C+L line system. 2022 32nd International Telecommunication Networks and Applications Conference (ITNAC), Wellington, New Zealand, 2022, pp. 204-206 https://uvadoc.uva.es/handle/10324/62350 10.1109/ITNAC55475.2022.9998374 Migration strategy from C-band elastic optical network to C+ L multiband optical network