Journal of Networks - Academy Publisher

138 JOURNAL OF NETWORKS, VOL. 5, NO. 2, FEBRUARY 2010
interfaces UNI and NNI within the control plane
employed. Consequently, the analysis of protocol stacks
from a security perspective is an important prerequisite.
Another issue related to network protection is a
comparative study of the trade-off between network
complexity and traffic restoration time.
VII. CONCLUSION
In this article, we have briefly reviewed management
issues in AONs with particular emphasis on
complications that arise from the unique characteristics of
AON components employed in communication systems.
We have also discussed the key management functions
that are responsible for ensuring the secure and continued
operation of the network. Accordingly, we have presented
a management framework for the realization of an
appropriate management system that could meet the
challenges posed by AONs.
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© 2010 ACADEMY PUBLISHER
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RIDHA REJEB is the Managing
Director of the Institute for
Advanced Engineering and
Research (IAER Limited) and an
Assistant Professor at the Physics
Institute, Faculty of Basic Sciences
at the Esslingen University of
Applied Sciences in Germany. He
has more than 18 years of industrial
experience in network and computer
operating systems. Ridha graduated in mathematics at the
Stuttgart University of Applied Sciences in Germany. He
received his M.Sc. degree in data communications systems from
Brunel University and his Ph.D. in engineering from the
University of Warwick, United Kingdom. His major research
interests include security in communication systems, resilience
in transparent optical networks and information theory. Ridha is
an Associate Fellow in the Division of Electrical and Electronic
Engineering, School of Engineering, University of Warwick,
UK and a Member of the IEEE.
MARK S LEESON is an Associate
Professor in the School of
Engineering at the University of
Warwick, UK. He received a Ph.D.
for work on planar optical
modulators from the University of
Cambridge, UK, in 1990 and then
worked as a network analyst for a
UK bank until 1992. Subsequently,
he held academic appointments in
London and Manchester before
joining the University of Warwick in March 2000. His major
research interests are optical receivers, optical communication
systems, communication protocols, coding and modulation, ad
hoc networking and evolutionary optimization. To date he has
over 150 publications in these fields. He is a Chartered Member
of the U.K. Institute of Physics, a Senior Member of the IEEE
and a member of the U.K. EPSRC grants Peer Review College.
CARMEN MAS MACHUCA is a senior
researcher and Lecturer at the Institute
of Communication Networks, Munich
University of Technology (TUM),
Germany. She formerly was an
Assistant Professor at the Athens
Institute of Technology (AIT), Greece.
In 1996, she graduated in
Telecommunications Engineering from
the Universitat Politècnica de Catalunya
(UPC), Spain. In 2000, she received her Ph.D. for research work
on fault location algorithms for optical networks from the Swiss
Federal Institute of Technology, Lausanne (EPFL), where she
also received a presidential award for achieved merits. Her
major research interests include network techno-economic
studies, optical networks security, network resilience and
network control and management, topics on which she has co-