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New strategies to confront with the threat of capacity exhaustion


Traffic generated by the internet has grown at the rate of about 100% a year since it was first measured, but has dominated the communication networks since the turn of the century. The networks prepared for this critical moment with the deployment of a large optical infrastructure, initially over-dimensioned. The advent of the WDM technology started a drive towards bandwidth mining, which is now reaching the effective occupation of the amplifiers gain bandwidth. Hence the emergence of the elastic optical networks as the first step to avoid the capacity crunch through enhancement of the network spectral efficiency. With this aim, two strategies are used: distance adaptiveness, through the adaptive ability of choosing the most spectrally efficient modulation scheme that is able to provide the required noise immunity; and flexibility in the allocation of spectrum to the user in order to avoid waste. A second step will deploy new fibers with several spatial modes, such that each mode maybe modulated independently. However, in order to face the energy bottleneck, it will be necessary to limit the traffic itself through the adoption of appropriate protocols in the higher layers, eliminating unnecessary or redundant traffic through datacentric addressing. Finally, traffic management will have to be aligned with the neutrality and other directives in order to preserve both the public nature of future internet and its promise of unceasing innovation. Our project will contribute to the success of these strategies through academic studies conducted in an interdisciplinary environment enriched with international cooperation. (AU)

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Scientific publications (14)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DOSI, GIOVANNI; FREEMAN, RICHARD B.; PEREIRA, MARCELO C.; ROVENTINI, ANDREA; VIRGILLITO, MARIA ENRICA. The impact of deunionization on the growth and dispersion of productivity and pay. INDUSTRIAL AND CORPORATE CHANGE, v. 30, n. 2, SI, p. 377-408, . (15/24341-7)
OSPINA, RUBY S. B.; VAN DEN HOUT, MENNO; ALVARADO-ZACARIAS, JUAN CARLOS; ANTONIO-LOPEZ, JOSE ENRIQUE; BIGOT-ASTRUC, MARIANNE; CORREA, ADRIAN AMEZCUA; SILLARD, PIERRE; AMEZCUA-CORREA, RODRIGO; OKONKWO, CHIGO; MELLO, DARLI A. A.. Mode-Dependent Loss and Gain Estimation in SDM Transmission Based on MMSE Equalizers. Journal of Lightwave Technology, v. 39, n. 7, p. 1968-1975, . (18/14026-5, 15/24517-8, 17/25537-8, 15/24341-7, 18/25414-6)
AMORIM, KELVIN SANTOS; PAVANI, GUSTAVO SOUSA. Ant Colony Optimization-based distributed multilayer routing and restoration in IP/MPLS over optical networks. Computer Networks, v. 185, . (15/24341-7)
DOSI, G.; PEREIRA, M. C.; ROVENTINI, A.; VIRGILLITO, M. E.. What if supply-side policies are not enough? The perverse interaction of flexibility and austerity. JOURNAL OF ECONOMIC BEHAVIOR & ORGANIZATION, v. 162, p. 360-388, . (15/24341-7)
QUEIROZ, JOEL CARLOS FARIAS; BONANI, LUIZ HENRIQUE; CERRONI, WALTER; CALLEGATI, FRANCO. Inter-Routes Fairness Strategies Inspired by Trunk Reservation Technique. IEEE COMMUNICATIONS LETTERS, v. 23, n. 12, p. 2284-2287, . (16/23511-9, 15/24341-7)
BARBOSA, FABIO APARECIDO; ROSSI, SANDRO M.; MELLO, DARLI A. A.. Phase and Frequency Recovery Algorithms for Probabilistically Shaped Transmission. Journal of Lightwave Technology, v. 38, n. 7, p. 1827-1835, . (18/14026-5, 15/24341-7, 15/24517-8)
MELLO, DARLI A. A.; SRINIVAS, HRISHIKESH; CHOUTAGUNTA, KARTHIK; KAHN, JOSEPH M.. Impact of Polarization- and Mode-Dependent Gain on the Capacity of Ultra-Long-Haul Systems. Journal of Lightwave Technology, v. 38, n. 2, p. 303-318, . (18/14026-5, 15/24341-7, 15/24517-8)
ASSIS, K. D. R.; ALMEIDA, JR., R. C.; WALDMAN, H.; SANTOS, A. F.; ALENCAR, M. S.; REED, M. J.; HAMMAD, A.; SIMEONIDOU, D.. SLA Formulation for Squeezed Protection in Elastic Optical Networks Considering the Modulation Format. JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING, v. 11, n. 5, p. 202-212, . (15/24341-7)
MELLO, DARLI A. A.; BARBOSA, FABIO APARECIDO; REIS, JACKLYN DIAS. Interplay of Probabilistic Shaping and the Blind Phase Search Algorithm. Journal of Lightwave Technology, v. 36, n. 22, p. 5096-5105, . (15/24341-7, 15/24517-8)
ASSIS, KARCIUS DAY R.; ALMEIDA JR, RAUL C.; DIAS, LEONARDO P.; WALDMAN, HELIO. Squeezed Protection in Elastic Optical Networks Subject to Multiple Link Failures. IEEE TRANSACTIONS ON NETWORK AND SERVICE MANAGEMENT, v. 18, n. 3, p. 2612-2626, . (15/24341-7)
BONANI, L. H.; QUEIROZ, J. C. F.; ABBADE, M. L. F.; CALLEGATI, F.. Load Balancing in Fixed-Routing Optical Networks with Weighted Ordering Heuristics. JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING, v. 11, n. 3, p. 26-38, . (08/57857-2, 15/24341-7, 16/23511-9)
JATOBA-NETO, ALAELSON C.; MELLO, DARLI A. A.; ROTHENBERG, CHRISTIAN E.; ARIK, SERCAN O.; KAHN, JOSEPH M.. Scaling SDM Optical Networks Using Full-Spectrum Spatial Switching. JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING, v. 10, n. 12, p. 991-1004, . (15/04382-0, 15/24341-7)
ROZENTAL, VALERY; KONG, DEMING; CORCORAN, BILL; MELLO, DARLI; LOWERY, ARTHUR J.. Filtered Carrier Phase Estimator for High-Order QAM Optical Systems. Journal of Lightwave Technology, v. 36, n. 14, p. 2980-2993, . (15/24341-7, 15/24517-8)
DOS SANTOS, LAILSON F.; FERREIRA, FILIPE M.; ELLIS, ANDREW D.; MELLO, DARLI A. A.. Filter Bank Multi-Sub-Band Transmission for Optical Systems With Mode Multiplexing. IEEE Photonics Journal, v. 11, n. 2, . (15/24341-7, 15/24517-8)

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