Uma estratégia online para degradação de serviço com QoS proporcional em Redes Ópticas Elásticas
Abstract
Elastic Optical Networks represent a new approach to dealing with high data traffic in high performance networks by offering bandwidth closer to that requested by users. In the current literature it is possible to perceive the absence of online strategies for degradation of service, which consists of an approach used to deal with the lack of available optical resources. This paper proposes an online strategy for service degradation using the proportional QoS model. This strategy aims to reduce the probability of blocking requests caused by lack of optical resources and to give a better treatment for different classes of service. In addition, pairs of source-destination nodes were modeled as a queuing system operating over the Generalized Processor Sharing (GPS) policy with Leaky Bucket control admission as the goal of quantifying the impact of degradation on lightpaths. The results show that the proposed strategy can reduce the probability of blocking by giving network operators greater control among different classes of degraded services.
References
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, Y., Qiao, C., Hamdi, M., and Tsang, D. H. K. (2003). Proportional differentiation: a scalable qos approach. IEEE Communications Magazine, 41(6):52–58.
Dovrolis, C. and Ramanathan, P. (1999). A case for relative differentiated services and the proportional differentiation model. IEEE network, 13(5):26–34.
Gerstel, O., Jinno, M., Lord, A., and Yoo, S. J. B. (2012). Elastic optical networking: a new dawn for the optical layer? IEEE Communications Magazine, 50(2):s12–s20.
Jain, R. (1991). The Art of Computer Systems Performance Analysis: Techniques for Experimental Design, Measurement, Simulation, and Modeling. Wiley.
Jinno, M., Takara, H., Kozicki, B., Tsukishima, Y., Sone, Y., and Matsuoka, S. (2009). Spectrum-efcient and scalable elastic optical path network: architecture, benets, and enabling technologies. IEEE Communications Magazine, 47(11):66–73.
Napoli, A., Bohn, M., Raque, D., Stavdas, A., Sambo, N., Poti, L., Nölle, M., Fischer, J. K., Riccardi, E., Pagano, A., Giglio, A. D., Moreolo, M. S., Fabrega, J. M., Hugues-Salas, E., Zervas, G., Simeonidou, D., Layec, P., D’Errico, A., Rahman, T., and Giménez, J. P. F. P. (2015). Next generation elastic optical networks: The vision of the european research project idealist. IEEE Communications Magazine, 53(2):152– 162.
Savas, S. S., Habib, M. F., Tornatore, M., Dikbiyik, F., and Mukherjee, B. (2014a). Network adaptability to disaster disruptions by exploiting degraded-service tolerance. IEEE Communications Magazine, 52(12):58–65.
Savas, S. S., Habib, M. F., Tornatore, M., and Mukherjee, B. (2014b). Exploiting degraded-service tolerance to improve performance of telecom networks. In Optical Fiber Communications Conference and Exhibition (OFC), 2014, pages 1–3.
Tomkos, I., Azodolmolky, S., Solé-Pareta, J., Careglio, D., and Palkopoulou, E. (2014). A tutorial on the exible optical networking paradigm: State of the art, trends, and research challenges. Proceedings of the IEEE, 102(9):1317–1337.
Vadrevu, C. S. K., Wang, R., Tornatore, M., Martel, C. U., and Mukherjee, B. (2014). Degraded service provisioning in mixed-line-rate wdm backbone networks using multipath routing. IEEE/ACM Transactions on Networking, 22(3):840–849.
Yap, K.-K., McKeown, N., and Katti, S. (2012). Multi-server generalized processor sharing. In Int. Teletrafc Congress (ITC), pages 29:1–29:8.
Zhang, G., Leenheer, M. D., Morea, A., and Mukherjee, B. (2013). A survey on IEEE Communications Surveys Tutoriofdm-based elastic core optical networking. als, 15(1):65–87.
Zhong, Z., Li, J., Hua, N., Figueiredo, G. B., Li, Y., Zheng, X., and Mukherjee, B. (2016). On QoS-assured degraded provisioning in service-differentiated multi-layer elastic optical networks. In IEEE Global Communications Conference (GLOBECOM), pages 1–5. IEEE.
