There are three main types of optical networks: 1. Opaque optical networks, where signal regeneration occurs electronically. 2. Translucent optical networks, which try to minimize costs and maximize speed by only doing necessary optical-to-electronic conversion. 3. Transparent optical networks, where the network has no optical-to-electronic conversion and speed is maximized. Translucent networks optimize opaque networks by strategically placing regenerators to minimize costs and maximize traffic flow speed. The optimal translucent network type places an adequate number of regenerators at each node, but may be complex for large networks. Sparser regenerator placement or "transparent islands" may provide simpler solutions in some

1. Gabarito do Artigo 10
Philippe P. S. Fanaro
Setembro de 2014
1 Dierentiate the types of Optical Networks.
There are mainly 3 types of optical networks:
1. The

2. rst one would be the opaque in which the regeneration and treatment
of the optical signal is accomplished in the electronic domain.
2. The second one is a transition into the third. The translucent optical
network tries to accomplish only the necessary optical to electronic con-version
and/or regeneration in order to minimize the costs and maximize
the speed of the
ux in the network.
3. The third and most probable future of the optical networks is the transpa-rent
optical network. Here, the network has no opto-electronic conversion,
i.e., the network is fully optical, thus the speed of the ongoing
ux is ma-ximized.
2 Why are Translucent Optical Networks the
Way Forward?
Translucent Optical Networks are a mean of optimization of the more common
Opaque Optical Network in which, through clever Opaque Node or OXC Rege-nerators
placement, one tries to minimize the costs and maximize the speed of
the trac
ux.
3 Which of the 3 types of Translucent Networks
is the best?
The OXC Nodes Network is the most optimal since there will be an adequate
number of regenerators at each node. But it might be extremely complicated to
solve in complex networks. So in some cases the Transparent Island or Sparsely
Opaque Nodes Placement might be an easier and simpler solution.
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3. 4 Notas
Notas do Paper 10
Nome Nota
Aline Feola 9,5
Bruno Tulio 9
Guilherme Garcia 10
Gustavo Ramires 0
Jooji Tani 10
Pedro Reis 10
Victor Rossi 10
5 Comentarios sobre a Correc~ao
5.1 Aline Feola
Resposta direta ao ponto, gostaria que ela tivesse sido mais elaborada, mas,
dada a formulac~ao da pergunta, ela esta certa. (Houve um erro de digitac~ao na
explicac~ao das redes translucidas, a convers~ao, e regenerac~ao em geral, e feita
para o meio eletrico e n~ao no optico.)
5.2 Bruno Tulio
Somente n~ao concordo com a respota da terceira quest~ao. N~ao

4. cou claro o que
ele quis dizer com o que favorece o uso dos mais simples nos opacos.
5.3 Guilherme Garcia
Talvez a melhor resposta, completa.
5.4 Jooji Tani
Nada a comentar, sucinta e correta.
5.5 Pedro Reis
Correta, mais detalhada do que a do Jooji inclusive.
5.6 Victor Rossi
Similar a resposta do Jooji em termos de detalhamento.
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