New Generation Optical Networks seminar, 14th April 2009
ISCTE, Auditorio Afonso de Barros, Ala Autonoma
Seminar description and objectives
New generation optical
networks are attracting more attention from
different players: academia, manufacturers,
operators and regulators.
This seminar aims at bringing together
participants from these different realms and
to present their perspective and
achievements on this hot topic.
This one day seminar is
structured in two sets of communications by
invited speakers describing not only recent
technology and theoretical achievements but
also current challenges and opportunities
that emerge on the provision and deployment
of these networks.
In the seminar programme there is also room
for discussion between a panel of invited
speakers and the audience.
The seminar is open to all
interested in this topic (students,
researchers, professionals). Due to
limitations on number of maximum participants a
pre-registration is required (details).
Seminar Programme
Morning Session:
9h30m-12h30m
9:30 Welcome, seminar opening and description
9:35 Reaching Optical MPLS from an OBS network
interoperable with GMPLS (Slides)
Professor Josep Solé-Pareta;
Universitat
Politècnica de Catalunya (UPC)
This talk will start
reviewing some key conceptual aspects of the
Optical Packet Switching (OPS) networks
based on the Virtual Circuits scheme. In
particular it will refer to the, so called,
Optical MPLS (OMPLS). Nevertheless, since
the current status of the optical technology
is far to can provide what OMPLS requires to
be deployed, the second part of the talk
will rely on Optical Burst Switching (OBS)
as a shorter-term available technology. Here
two issues will be addressed, namely a
proper OBS node architecture to be
implemented, and the design of an
interoperable GMPLS/OBS Control Plane. The
former aiming to make possible the
coexistence between OBS and OPS, and the
latter to allow the migration from the
Optical Circuit Switching (OCS) networks,
currently under deployment, to the OBS
networks.
10:35 Coffee Break
10:45 Redes de Acesso
Ópticas (Slides)
Professor João Pires;
Instituto Superior
Técnico (IST), Instituto de Telecomunicações
(IT) - Lisboa
A introdução de fibra
óptica na rede de acesso é já uma realidade
em vários países, enquanto em outros, como é
o caso de Portugal, houve já operadores que
anunciaram investimentos muito
significativos para a fibragem do acesso.
A solução tecnológica, normalmente usada,
designa-se por PON (Passive Optical
Network). As redes PONs são baseadas,
essencialmente, na norma GPON (Gigabit
Passive Optical Network), e na norma EPON
(Ethernet PON). A primeira suporta um débito
máximo de linha de 2.5 Gbit/s, enquanto a
segunda suporta um débito de linha de 1.25
Gb/s. Também está actualmente em fase de
normalização a 10G-EPON, a qual vai permitir
aumentar os débitos de linha para cerca de
10 Gb/s. Outra alternativa, passível de ser
usada para aumentar os débitos de acesso
consiste na utilização de WDM (Wavelength
Division Multiplexing) no acesso através da
tecnologia WDM-PON. Numa perspectiva de
médio prazo pode-se ainda equacionar uma
estratégia de evolução baseada na
convergência entre o acesso e o metro usando
soluções ópticas. Contudo, estas novas redes
de acesso/metro híbridas requerem a
introdução de novas tecnologias como os
amplificadores ópticos, e de novas
arquitecturas de rede com elevada
resiliência e por isso o seu projecto terá
de dar resposta a problemas diferentes
daqueles que são encontrados no projecto das
PONs tradicionais. Nesta palestra ir-se-á
examinar aspectos tais como as motivações
para a introdução da fibra óptica no acesso,
as tecnologias e as soluções topológicas
disponíveis e as estratégias de evolução.
11:45 SARDANA- a Next Generation PON with extended
reach and debits
(Slides)
Professor
António Teixeira;
Universidade de Aveiro
(UA), Instituto de Telecomunicações (IT) -
Aveiro
Next
generation of optical networks will have to
cope with highly demanding users and even
geographical structures. For that in this
talk we will observe the challenges we face
when such targets are aimed, and
subsequently we will address the technical
solutions that are being developed in the
SARDANA project and that will eventually
influence the standards and the technical
solutions for the next generation of access
networks.
Afternoon Session:
14h30m-18h00m
14:30 Research Activities at Nokia Siemens
Networks Portugal S.A. for Next Generation
Optical Networks
(Slides)
Professor
Paulo Monteiro;
Nokia Siemens
Networks, Universidade de Aveiro (UA), Instituto de Telecomunicações (IT) -
Aveiro
Nokia
Siemens Networks (NSN) is a leading global
enabler of communications services. The
company provides a complete, well-balanced
product portfolio of mobile and fixed
network infrastructure solutions. Nokia
Siemens Networks Portugal SA, which is the
Portuguese branch of NSN, holds a laboratory
for research and testing, which currently
supports pure and applied research in
several areas, such as next generation
packet solutions and advanced network
solutions across different areas, e.g.,
optical networks as well as
protocols/network management for fixed and
mobile applications.
This talk
summarizes the research activities carried
out by the Research Group at Nokia Siemens
Networks Portugal S.A. in collaboration with
both Universities and Research Institutes.
These activities cover various aspects of
High Speed Communications for Access and
Core Optical Networks; Fixed-Mobile
Convergence.
15:30 Next Generation Access Networks – a key
factor of development (Slides)
Eng. Álvaro Oliveira;
Vodafone Portugal
In a world with ever
increasing needs for communications among
people and companies, NGANs will be key
factor for development of an evolved
society. These Networks still face however
some barriers and difficulties, technical
and non-technical. To overcome these
barriers a joint effort will be required
between the TELCOs, the Municipalities, the
regulators and the contractors/installers,
among others.
This presentation aims at analyzing the key
topics of the subject and discuss the
actions that should be followed in the next
1-2 years.
16:25 Coffee Break
16:40 Next Generation Networks: the regulator's
perspective (Slides)
Dr. José Manuel Ferrari Careto;
Autoridade Nacional de
Comunicações (ANACOM)
17:40 Closing/discussion
panel
Organizing Comittee
Rui Jorge Lopes,
João Rebola,
Luis Cancela
Instituto Superior de Ciências do Trabalho e
da Empresa (ISCTE)
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