1. Dr. Luiz Henrique Bonani
Assistant Professor
Federal University of ABC - UFABC
February, 2014
Issues on Optical Networks at
UFABC
Trends in Future Communications: High Performance Network
Infrastructure for Future Internet

2. ABC Region – Brazil
ABC Region: 6 cities,
2,546,135 inhabitants (2010)
2

3. UFABC
 Some numbers:
 Year of Foundation: 2006;
 Campi: 2 (Santo André and São Bernardo do Campo);
 Undergraduate Programs: 26;
 Undergraduate Students: 8,612 (November 2013);
 Graduate Programs: 19;
 Graduate Students: 986 (November 2013).
3
http://www.ufabc.edu.br

4. Research Staff
 M.Sc Candidates
 Alexandre Tozetti, UFABC
 Cristiano Viana, UFABC
 José Vitor Andrade, UFABC
 Wilson dos Santos, UFABC
 M.Sc.
 Alex Bernaz, UFABC
 Matheus Borges, UFABC
 D.Sc.
 Lidia Galdino, Unicamp
4

5. Research Interests
1. General Optical Transparent Networks
2. Cross-layer Physical Impairments on
Optical Networks
3. Wavelength-based Optical Switching
Paradigms and Algorithms
4. Spectrum-based Optical Switching
Paradigm and Algorithms
5. Convergence of Optical Networks with Multiple
Optical Switching Paradigms
5

6. Research Interests
1. General Optical Transparent Networks
2. Cross-layer Physical Impairments on
Optical Networks
3. Wavelength-based Optical Switching
Paradigms and Algorithms
4. Spectrum-based Optical Switching
Paradigm and Algorithms
5. Convergence of Optical Networks with Multiple
Optical Switching Paradigms
6

7. General Optical Transparent Networks
 Sparse Placement of Functional
Resources in OBS Access
Networks
7
Burst blocking probability for λ = 8 and λ = 16.
Delay with λ = 8 for only the received bursts.

8. General Optical Transparent Networks
 Hybrid WDM/OCDM
Techniques for OBS Switching
8
BER versus the number of simultaneous users for both
systems. (a) The parameters are code length N=L=511, and
code weight of either 5 or 7. (b) The parameters are code
lengths N, L of 380, 511, and 676. And code weight w=W=7.
Encoder Decoder

9. General Optical Transparent Networks
 Collaborations:
 Recent Publications:
1. Galdino, L.; Raddo, T. R. ; Sanches, Anderson L. ; Bonani, Luiz H. ; MOSCHIM, E. . Performance comparison of hybrid 1-D WDM/OCDMA
and 2-D OCDMA towards future access network migration scenario. In: 2012 14th International Conference on Transparent Optical
Networks (ICTON), Coventry.,UK. 2012.
2. Galdino, L. ; Maranhão, J. ; Furtado, M. T. ; Bonani, Luiz H. ; DURAND, F. R. ; MOSCHIM, E. . Evolution of hybrid WDM/OCDM technology
in OBS networks with optical code and wavelength conversion. Photonic Network Communications, v. 25, p. 47-59, 2013.
3. Bonani, Luiz Henrique . Performance evaluation of Optical Burst Switched mesh networks with Localized Functional Resources. In: 2012
14th International Conference on Transparent Optical Networks (ICTON), Coventry, UK. 2012.
9

10. Research Interests
1. General Optical Transparent Networks
2. Cross-layer Physical Impairments on
Optical Networks
3. Wavelength-based Optical Switching
Paradigms and Algorithms
4. Spectrum-based Optical Switching
Paradigm and Algorithms
5. Convergence of Optical Networks with Multiple
Optical Switching Paradigms
10

11. Cross-layer Physical Impairments on
Optical Networks
 Dispersion Constraints in OBS
Networks with WDM/OCDM
11
BER
Encoder Decoder

12. Cross-layer Physical Impairments on
Optical Networks
 Collaborations:
 Recent Publications:
1. Bonani, Luiz Henrique ; Dos Santos, Alex Bernaz ; Galdino, Lidia . Dispersion constraints in optical burst switched metropolitan networks
with WDM/OCDM technology. In: 2013 15th International Conference on Transparent Optical Networks (ICTON), 2013, Cartagena. 2013.
2. Galdino, L. ; Abbade, M. L. F. ; Bonani, L. H. ; Marconi, J. D. ; Fragnito, H. L. ; Moschim, E. . An All-Optical OCDMA Encoder with
Simultaneous Signal Regeneration Based on Fiber Four-Wave Mixing. Microwave and Optical Technology Letters , 2014 (to appear).
3. Abbade, M. L. F. ; Galdino, L. ; Ribeiro, N. S. ; Marconi, J. D. ; Bonani, L. H. ; Moschim, E. . An all-optical OCDMA encoder with simultaneous
signal regeneration based on cross-gain modulation in semiconductor optical amplifiers. In: 2012 14th International Conference on
Transparent Optical Networks (ICTON), Coventry, UK. 2012.
12

13. Research Interests
1. General Optical Transparent Networks
2. Cross-layer Physical Impairments on
Optical Networks
3. Wavelength-based Optical Switching
Paradigms and Algorithms
4. Spectrum-based Optical Switching
Paradigm and Algorithms
5. Convergence of Optical Networks with Multiple
Optical Switching Paradigms
13

14. Wavelength-based Optical Switching
Paradigms and Algorithms
 Mathematical Models for
Blocking Probability in Optical
Networks
14

15. Wavelength-based Optical Switching
Paradigms and Algorithms
Simulation
Analysis
Simulation
Evolution
General
Configuration
Topology
Configuration
Traffic
Composition
Physical
Parameters
Switching and
Routing
Threshold
Settings
15
INPI: BR 51 2013 00123

16. Wavelength-based Optical Switching
Paradigms and Algorithms
 Example Single-Mode Fiber:
 Loss
 Nonlinear Index Coefficient
 Effective Core Area
 Zero Dispersion Wavelength
 Chromatic Dispersion Coefficient
 Dispersion Slope
 PMD Coefficient
 ... Dispersion Compensation
Coefficients
16
INPI: BR 51 2013 00123

17. Wavelength-based Optical Switching
Paradigms and Algorithms
 Collaboration:
 Recent Publications:
1. Bonani, Luiz H. ; Fonseca, Iguatemi E. . Estimating the blocking probability in wavelength-routed optical networks. Optical Switching and
Networking (Print), v. 10, p. 430-438, 2013.
2. Martins, Indayara B. ; Moschim, E. ; Bonani, Luiz Henrique ; Barbosa, Felipe Rudge . Contribution to future metropolitan access network
planning considering link failures in photonic switched networks. Photonic Network Communications, v. 23, p. 231-235, 2012.
3. Martins, I. B. ; Barbosa, F. R. ; Bonani, L. H. ; Moschim, E. . Proposition of a Hybrid Topology for Photonic Switched Optical Networks. In:
XXX Simpósio Brasileiro de Telecomunicações, 2012, Brasília, 2012.
17

18. Research Interests
1. General Optical Transparent Networks
2. Cross-layer Physical Impairments on
Optical Networks
3. Wavelength-based Optical Switching
Paradigms and Algorithms
4. Spectrum-based Optical Switching
Paradigm and Algorithms
5. Convergence of Optical Networks with Multiple
Optical Switching Paradigms
18

19. Spectrum-based Optical Switching
Paradigm and Algorithms
 Service Fairness in Flexible Optical Networks
19
Without trunk reservation
With trunk reservation
X
Trunk reservation threshold σ
The threshold σ must be redefinied for a Spectrum-based Switching without Defragmantation!

20. Spectrum-based Optical Switching
Paradigm and Algorithms
 Resource Sharing/Division
and Algorithms
20
0 20 40 60 80 100
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Blockingprobability(%)
Traffic load (Erlang)
0 1 2 3 4 5 6 7 8 9 10
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Blockingprobability(%)
Traffic load (Erlang)
FF
SBD-FF
RF
SBD-RF
PMFF
(c)
...
...
(b)
(a)
Bc = 2Bf Bc = 4Bf Bc = 2Bf Bc = 6Bf
Bc1 = 2Bf Bc = 4Bf Bc3 = 6Bf
Bf
BS
BS
B1 B2 B3
(a)
0 1 2 3 4 5 6 7 8 9 10
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
NetworkBandwidthOccupation(%)
Traffic load (Erlang)
FF
SBD-FF
RF
SBD-RF
PMFF
0 20 40 60 80 100
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
NetworkBandwidthOccupation(%)
Traffic load (Erlang)

21. Spectrum-based Optical Switching
Paradigm and Algorithms
 Recent Publications:
1. Callegati, F. ; Bonani, Luiz H. ; Cerroni, W. . Service Fairness in Flexible Optical Networks. In: Optical Fiber Communication Conference,
2013, Anaheim. Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013. Washington: OSA. p.
OTh1H.4.
2. Cruzvillasante, F. L. ; Callegati, F. ; Cerroni, W. ; Bonani, L.H. . Trunk Reservation for Elastic Optical Networks. In: ICTON 2013, 2013,
Cartagena, 2013.
3. Silva, P. C. B. ; Abbade, M. L. F. ; Bonani, L. H. . Performance Comparison of Transparent Optical Networks with Multiple Bandwidth
Channels. In: SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, 2013, Rio de janeiro, 2013.
 Collaborations:
21

22. Research Interests
1. General Optical Transparent Networks
2. Cross-layer Physical Impairments on
Optical Networks
3. Wavelength-based Optical Switching
Paradigms and Algorithms
4. Spectrum-based Optical Switching
Paradigm and Algorithms
5. Convergence of Optical Networks with Multiple
Optical Switching Paradigms
22

23. Optical Networks with Multiple Optical
Switching Paradigms
 Project:
 New Perspectives for the Switching Paradigms on New Generation
Optical Networks:
Abstract: This research project aims to expand the studies in the area of Optical Networks, focusing on new
perspectives for the switching paradigms that are likely to be present in the next generation of optical networks.
Therefore, the main objective of this project is to analyze hybrid networks operating with different switching
paradigms, using for this goal the ONSim platform, developed in our research group. Thus, we are intended to
enable the simulation of hybrid optical networks with multiple switching paradigms, which will be studied in a
variety of scenarios.
 Start: March, 01.
23
Grant: 2013/24247-5Grant 306153/2013-0

24. Optical Networks with Multiple Optical
Switching Paradigms
 Main Topics
 Convergence of Multiple Switching Paradigms
o OCS, OBS (with different signaling methods), OPS, Spectrum Switching
o Performance Analysis of different scenarios
 Hybrid Switching Networks
o Application of Algorithms for Service Fairness in Hybrid Optical Networks
working with multiple Switching Paradigms.
24
Grant: 2013/24247-5Grant 306153/2013-0

25. Thank you
Grant 2013/24247-5
Luiz Henrique Bonani
Federal University of ABC
luiz.bonani@ufabc.edu.br
25
Grant 306153/2013-0