Provisão de Banda de Guarda Adaptativa em Redes Ópticas Elásticas

• Neclyeux Sousa Monteiro UFPI
• André Castelo Branco Soares UFPI

DOI: https://doi.org/10.5753/sbrc_estendido.2022.222349

Abstract

The guard band is a frequency interval that separates the active circuits that share the same links in order to reduce interference between them. In this way, the size of the frequency interval used as the guard band can be used in an adaptive way, searching for a balance between quality of transmission and spectral efficiency. The main objective is to study the problem of guard band allocation and to propose new solutions aiming at a better performance of elastic optical networks. In the first scenario, the proposed GUARDIAN algorithm achieved a gain between 99.15% and 99.97% over the other algorithms. In the second scenario, the proposed GBOM algorithm presented a gain between 20.00% and 88.55% over the others.

References

Cao Chen, Min Ju, Shilin Xiao, Fen Zhou, and Xueling Yang (2017). Minimizing total blocking by setting optimal guard band in nonlinear elastic optical networks. In 2017 19th International Conference on Transparent Optical Networks (ICTON), pages 1–4.

Chatterjee, B. C., Sarma, N., and Oki, E. (2015). Routing and spectrum allocation in elastic optical networks: A tutorial. IEEE Communications Surveys Tutorials, 17(3):1776–1800.

Chen, X., Zhong, Y., and Jukan, A. (2013). Multipath routing in elastic optical networks with distance-adaptive modulation formats. In 2013 IEEE International Conference on Communications (ICC), pages 3915–3920.

Fontinele, A., Santos, I., Neto, J. N., Campelo, D. R., and Soares, A. (2017). An efficient ia-rmlsa algorithm for transparent elastic optical networks. Computer Networks, 118:1 – 14.

Johannisson, P. and Agrell, E. (2014). Modeling of nonlinear signal distortion in fiber-optic networks. Journal of Lightwave Technology, 32(23):4544–4552.

Rahbar, A. G. (2012). Review of dynamic impairment-aware routing and wavelength assignment techniques in all-optical wavelength-routed networks. IEEE Communications Surveys Tutorials, 14(4):1065–1089.

Takeshita, H., Noguchi, H., Abe, J., Fujisawa, S., and Tajima, A. (2016). Adaptive guardband assignment with adaptive spectral profile equalizer to improve spectral usage of impairment-aware elastic optical network. In ECOC 2016; 42nd European Conference on Optical Communication, pages 1–3.

Yan, L., Agrell, E., Wymeersch, H., Johannisson, P., Di Taranto, R., and Brandt-Pearce, M. (2015). Link-level resource allocation for flexible-grid nonlinear fiber-optic communication systems. IEEE Photonics Technology Letters, 27(12):1250–1253.