Net-Con2004
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Network Control and Engineering for QoS, Security and Mobility
IFIP TC6 Conference
Sponsored by the following IFIP Working Groups:
WG6.2 (Network and Internetwork Architectures)
WG6.6 (Management of Networks and Distributed Systems)
WG6.7 (Smart Networks)
WG6.8 (Mobile and Wireless Communications)
Organised by the Universitat de les Illes Balears
Palma de Mallorca, Spain
November 2 5, 2004
GENERAL CHAIR R. Puigjaner, Universitat de les
Illes Balears (ES)
PROGRAM CO-CHAIRS D. Gaïti, Université Technique de Troyes
(FR)
S. Galmés , Universitat
de les Illes Balears (ES)
STEERING COMMITTEE A. Casaca, INESC (PT)
A.A. Lazar, Columbia
University (US)
Al-Naamany, Sultan
Qaboos University (OM)
O. Martikainen, Micsom
(SF)
G. Pujolle, LIP6 (FR)
J. Slavik, Testcom (CZ)
O. Spaniol, RWT Aachen
(DE)
TUTORIAL CHAIR J.-L. Ferrer, Universitat de les Illes
Balears (ES)
FINANCIAL CHAIR B. Serra, Universitat de les Illes
Balears (ES)
PROGRAM COMMITTEE A. Al-Naamany, Sultan Qabous University (OM)
F. Arve Aagesen,
Norwegian University (NO)
G. Bianchi, Universita
di Palermo (IT)
A. Benzekri, Université
Paul Sabatier (FR)
C. Blondia, Univestiy of
Antwerpen (BE)
R. Boutaba, University
of Waterloo (CA)
A. Casaca, INESC (PT)
O. Cherkaoui, UQAM (CA)
P. Cuenca, Universidad
de Castilla La Mancha (ES)
W. Dabbous, INRIA (FR)
F. Davoli, Univesita di
Genova (IT)
J. Domingo, Universitat
Politècnica Catalunya (ES)
O. Duarte, Universidade
Federal de Rio de Janeiro (BR)
A. El Sherbini, National
Telecommunication Institute EG)
J. Escobar, Centauritech
(PA)
L. Fratta, Politecnico
de Milano (IT)
G. Haring, Wien
Univeristät (AT)
D.-Y. Hu, Institute of
Network Technology (CN)
L. Huguet, Universitat
de les Illes Balears (ES)
V. B. Iversen, Technical
University of Denmark (DK)
F. Kamoun, Université La
Manouba (TU)
U. Korner, Lund
University (SE)
G. Leduc, Université de
Liège (BE)
G. Omidyar, Institute
for Communications Research (SG)
G. Pacifici, IBM, (US)
H. Perros, North
Carolina State University (US)
G. Pujolle (LIP6 (FR)
F. J. Quiles,
Universidad de Castilla La Mancha (ES)
R. Reda, Siemens AG (DE)
T. Saito, Toyota (JP)
B. Serra, Universitat de
les Illes Balears (ES)
J. Slavik, Testcom (CZ)
O. Spaniol, RWT Aachen
(DE)
Y. Stavrakakis,
Universtiy of Athens (GR)
Y. Takahashi, Kyoto
University (JP))
F. Tobagi, Stanford
University (US)
ORGANISING COMMITTEE L. Carrasco, Universitat de les Illes Balears
(ES)
I. Furió, Universitat de
les Illes Balears (ES)
M. Payeras, Universitat
de les Illes Balears (ES)
LOCATION
The sessions will be held at the Conference room (Sala dActes) of the
Guillem Cifre de Cologna building in the UIB campus (Valldemossa road km
7.5).
TRANSPORTATION
A bus will pick up the conference attendees at the official hotels at
08:15 to bring them to the conference site. At the end of the sessions a
bus will transport the attendees to the official hotels.
TUTORIALS
T-1
Internet Multimedia Applications: Challenges and Design
Raouf Boutaba, University of Waterloo (Canada)
Abstract
New multimedia networking applications such as entertainment video, IP
telephony, Internet radio, teleconferencing, interactive games, virtual
worlds, and others have known an explosive growth in the recent years.
These applications are highly sensitive to end-to-end delay and delay
variation. These particular service requirements suggest that a network
architecture that has been designed primarily for packet loss sensitive
data communication is not adequate for supporting multimedia
applications. A number of efforts to extend the Internet architecture to
provide explicit support for the service requirements of multimedia
applications are currently deployed. These efforts involve the
development of new standards for framing and controlling the
transmission of multimedia data, dedicated transport protocols, new
signaling protocols, and new network layer service abstractions. This
tutorial examines the key principles of the next-generation Internet
architecture being developed to support service classes that provide
quality-of-service (QoS) performance guarantees to multimedia
applications. This tutorial will also discuss policy-based networking as
the control component of next generation QoS-sensitive Internet.
Biography
Dr. Raouf Boutaba is currently an Associate Professor in the School of
Computer Science of the University of Waterloo. Before that he was with
the Department of Electrical and Computer Engineering of the University
of Toronto. Before joining academia, he founded and was the director of
the telecommunications and distributed systems division of the Computer
Science Research Institute of Montreal (CRIM). Dr. Boutaba conducts
research in the areas of network and distributed systems management and
resource management in multimedia wired and wireless networks. He has
published more than 120 papers in refereed journals and conference
proceedings. He is the recipient of the Premier's Research Excellence
Award, a fellow of the faculty of mathematics of the University of
Waterloo, and a distinguished lecturer of the IEEE Computer Society. Dr.
Boutaba is the Chairman of the IFIP Working Group on Networks and
Distributed Systems, the Vice Chair of the IEEE Communications Society
Technical Committee on Information Infrastructure, and the Chair of the
IEEE Communications Society Committee on Standards. He is the founder
and editor in Chief of the IEEE ComSoc eTransactions on Network and
Service Management, on the advisory editorial board of the Journal of
Network and Systems Management, on the editorial board of the KIKS/IEEE
Journal of Communications and Networks, and the editorial board of the
Journal of Computer Networks.
T-2
MPLS and GMPLS Architectures
Harry Perros, North Carolina State University (USA)
Abstract
The Multi-Protocol Label Switched (MPLS) introduces a
connection-oriented structure into the otherwise connectionless IP
network. It was originally proposed for packet-switched networks, such
as IP networks, ATM, and Frame Relay. Subsequently it was extended to
generalized MPLS (GMPLS) which is also applicable to optical networks
and TDM networks. In this tutorial we will first explore the basic
features of MPLS and its signaling protocols: LDP, CR-LDP, and RSVP-TE.
Subsequently, we will describe the main features of wavelength routing
optical networks and introduce GMPLS.
Topics: 1. Main features of MPLS
2. Signaling Protocols (LDP, CR-LDP, RSVP-TE)
3. Wavelength routing optical networks
4. GMPLS
5. Extensions of CR-LDP and RSVP-TE for GMPLS
Biography
Harry G. Perros is a Professor of Computer Science, an Alumni
Distinguished Graduate Professor, and the Program Coordinator of the
Master of Science degree in Computer Networks at NC State University.
He received the B.Sc. degree in Mathematics in 1970 from Athens
University, Greece, the M.Sc. degree in Operational Research with
Computing from Leeds University, England, in 1971, and the Ph.D. degree
in Operations Research from Trinity College Dublin, Ireland, in 1975. He
has held visiting faculty positions at INRIA, Rocquencourt, France
(1979), NORTEL, Research Triangle Park, North Carolina (1988-89 and
1995-96) and University of Paris 6, France (1995-96, 2000, and 2002).
He has published extensively in the area of performance modelling of
computer and communication systems, and he has organized several
national and international conferences. He has also published two print
books: Queueing Networks with Blocking: Exact and Approximate Solutions,
Oxford Press 1994, An Introduction to ATM Networks, Wiley 2001, and an
e-book Computer Simulation Techniques The Definitive
Introduction,2002. He is currently completing a textbook entitled
Connection-Oriented Networks, scheduled to be published in the Spring of
2005 by Wiley.
In 1995, he founded the IFIP Working Group 6.3 on the Performance of
Communication Systems, and he was the chairman from 1995 to 2002. As
from 2004, he is the chairman of the IFIP Working Group 6.10 on Optical
Networks. He is also a member of IFIP Working Groups 6.2, and 7.3, and
an IEEE Senior Member. He also an associate Editor for the Performance
EvaluationJournal, and the Telecommunications SystemsJournal.
His current research interests are in the areas of optical networks.
T-3
Evolution of ITU-T Authentication Services and the Standarization of
Authorization Mechanisms: From PKIs to PMIs
Javier López Muñoz, Universidad de Málaga (Spain)
Abstract
The objective of this tutorial is to present the problems of advanced
authentication and authorization services and how attribute certificate
and Privilege Management Infrastructure (PMI) concepts, evolving from
the traditional concepts of identity certificate and Public Key
Infrastructure (PKI), have been proposed by the ITU-T as the tool and
framework, respectively, for the provision of A&A services in many of
the new Internet applications.
Identity certificates (or public-key certificates) provide the best
solution to integrate authentication service into most applications
developed for the Internet that make use of digital signatures. However,
new applications, particularly in the area of e-commerce, need an
authorization service to describe what it is allowed for a user to do.
In this case privileges to perform tasks should be considered.
Authorization is not a new problem, and different solutions have been
used in the past. However, traditional solutions are not very helpful
for many of the Internet applications. Those solutions are not easy to
use in application scenarios where the use of identity certificates, to
attest the connection of public keys to identified subscribers, is a
must. In such scenarios, types of independent data objects that can
contain user privileges would be of great help. Attribute certificates
proposed by the ITU-T International Telecommunications Union X.509
recommendation in 2000 seems to provide an appropriate solution, as
these data objects have been designed to be used in conjunction with
identity certificates.
The use of a wide-ranging authentication service based on identity
certificates is not practical unless it is complemented by an efficient
and trustworthy mean to manage and distribute all certificates in the
system. This is provided by a Public-Key Infrastructure (PKI), which at
the same time supports encryption, integrity and non-repudiation
services. Without its use, it is impractical and unrealistic to expect
that large scale digital signature applications can become a reality.
Similarly, the attribute certificates framework defined by ITU provides
a foundation upon which a Privilege Management Infrastructure (PMI) can
be built. PKI and PMI infrastructures are linked by information
contained in the identity and attribute certificates of every user. The
link is justified by the fact that authorization relies on
authentication to prove who you are.
Although the framework described by ITU is a very good staring point, it
is certainly abstract, and leaves many open questions when
implementation issues are considered. Maybe that is the reason why PMIs
has not been widely deployed yet. For this reason, in this tutorial we
will explain in detail how PMIs have evolved from PKIs and establish
their similarities, we will study the insides of PMIs, and give
guidelines for their implementation and use in e-commerce applications.
The outline of this tutorial is: (i) The Authentication problem; (ii)
Identity Certificates and Certification Authorities; (iii) Public Key
Infrastructures and limitations to solve the Authorization problem; (iv)
Attribute Certificates and Privilege Management Infrastructures; (v) PMI
models; (vi) Other initiatives.
Biography
Javier López received his BSc and MSc degrees in Computer Engineering
from the University of Malaga in 1989 and 1992, respectively. After
working as network manager and system analyst in the industrial sector,
he joined the Department of Computer Science of the University of Malaga
in 1994. He received his PhD degree in Computer Science in 2000, where
he works as an associate professor. His current research activities
focus on the design of security-related infrastructures, namely PKI and
PMI, as well as on non-repudiation services for e-commerce and on the
design/analysis of e-commerce protocols. In this area, he has been the
Technical Manager of CASENET, a consortium of nine private companies and
research centers working on the V Framework Programme Research Project
Computer Aided Solutions to Secure Electronic Commerce Transactions.
T-4
Wireless Sensor Networks: State of the Art
Ozgur Baris Akan, Georgia Institute of Technology (USA)
Abstract
The objective of this tutorial is to present the concept of wireless
sensor networks, which has been made viable by the significant
developments in wireless communications and microelectro-mechanical
systems technology, along with the communication and networking
challenges and the currently proposed solutions.
The tutorial will cover the following: (i) Introduction to Wireless
Sensor Networks and its applications; (ii) Application Layer; (iii)
Transport Layer; (iv) Routing Protocols; (v) Link Layer; (vi)
Conclusions.
Recent advances in Micro-Electro-Mechanical Systems (MEMS) and radio
telecommunication techniques have enabled the production and deployment
of tiny intelligent sensors to collect collaborative information about
the physical environment. The collaborative effort of these networked
wireless sensor nodes may provide sensing capabilities in space and time
that surpass the achievements of current sensing systems. However, this
objective necessitates the efficient and application specific
communication protocols to assure the reliable communication of the
sensed event features and hence enable the required actions to be taken
by the actors in the smart environment. In this tutorial, the challenges
and the existing solutions for the design and development of
sensor/actor network communication protocols are presented. More
specifically, application layer, transport layer, network layer, data
link layer, in particular, error control and MAC protocols, are
explained in detail. Open research issues for the realization of sensor
and actor networks are also discussed.
Biography
Dr. Ozgur Baris Akan received his B.Sc. and M.Sc. degrees in Electrical
and Electronics Engineering from Bilkent University and Middle East
Technical University, Ankara, Turkey, in 1999 and 2001, respectively. He
received his Ph.D. degree in Electrical and Computer Engineering in 2004
from the Broadband and Wireless Networking Laboratory at the School of
Electrical and Computer Engineering, Georgia Institute of Technology,
Atlanta, GA. He is currently an Assistant Professor at the Department of
Electrical and Electronics Engineering, Middle East Technical
University, Ankara, Turkey. His current research interests include
wireless sensor networks, next generation wireless networks, and deep
space communication networks.
NOVEMBER 2
08:00 Registration
09:00 TUTORIAL 1
Internet Multimedia Applications: Challenges and Design
Raouf Boutaba, University of Waterloo (Canada)
TUTORIAL 2
The MPLS and GMPLS Architectures
Harry Perros, North Carolina State University (USA)
10:30 Coffee break
11:00 TUTORIAL 1 and 2 (continuation)
12:30 Lunch
14:00 TUTORIAL 3
Evolution of ITU-T Authentication Services and the Standardization of
Authorization Mechanisms: From PKIs to PMIs
Javier López Muñoz, Universidad de Málaga (Spain)
TUTORIAL 4
Wireless Sensor Networks: State of the Art
Özgur B. Akan, Georgia Institute of Technology (USA)
15:30 Coffee break
16:00 TUTORIAL 3 and 4 (continuation)
NOVEMBER 3
09:00 Opening Session
09:30 Keynote Speech
Pervasive wireless networks engineering
Guy Pujolle, University of Paris 6 (France)
10:30 Coffee break
11:00 Session 1: Network Policy
Configuration Model for Network Management
R. Deca, University of Quebec at Montreal & Cisco Systems, Inc., O.
Cherkaoui, University of Quebec at Montreal, & D. Puche, Cisco Systems,
Inc. (Canada)
On-line Control of Service Level Agreements
M. C. Penna & R. R. Wandresen, Pontifícia Universidade Católica do
Paraná (Brazil)
Revenue-aware Resource Allocation in the Future Multi-service IP
Networks
J. Zhang, T. Hämäläinen & J. Joutsensalo, University of Jyväskylä
(Finland)
12:30 Lunch
14:00 Session 2: Network Security
A Kerberos-based Authentication Architecture for Wireless LANs: Test
beds and Experiments.
M. A. Kaafar, L. Ben Azzouz & F. Kamoun, Université de la Manouba
(Tunisia)
An efficient mechanism to ensure location privacy in telecom service
applications
O. Jorns & S. Bessler &, Telecommunications Research Centre Vienna, & R.
Pailer, Mobikom Austria (Austria)
Network Security Management: A Formal Evaluation Tool based on RBAC
Policies
R. Laborde, B. Nasser, F. Grasset, F. Barrère & A. Benzekri, Université
Paul Sabatier (France)
15:30 Coffee Break
16:00 Session 3: Quality of Service
A Dynamic Cross Layer Control Strategy for Resource Partitioning in a
Rain Faded Satellite Channel with Long-Lived TCP Connections
N. Celandroni, ISTI-CNR, F. Davoli, CNIT and Universita de Genova, E.
Ferro & A. Gotta, ISTI-CNR (Italy)
Content Location and Distribution in Converged Overlay Networks
O. Unger, Technion - Israel Institute of Technology and Zoran
Microelectronics, & I. Cidon, Technion - Israel Institute of Technology
(Israel)
A Communication Architecture for Real-time Auctions
H. Kaffel Ben Ayed, S. Kaabi Chihi & F. Kamoun, Université de la Manouba
(Tunisia)
20:00 Reception at the Bellver Castle
Offered by the Palma Town Hall
NOVEMBER 4
09:00 Session 4: Invited Talk
Optical Burst Switching: Where do we go from here?
Harry Perros, North Carolina State University (USA)
10:00 Coffee break
10:30 Session 5: Wireless Networks
An Interference-Based Prevention Mechanism against WEP Attack for
802.11b Network
W.-C. Hsieh, Shu-Te University, Y.-H. Chiu, National Yunlin University
of Science & Technology, & C.-C. Lo, National Chiao-Tung University
(Taiwan)
Restricted Dynamic Programming for Broadcast Scheduling
S. Wang, National Taiwan University of Science and Technology and Taiwan
Police College, & H.-I. Chen, National Taiwan University of Science and
Technology (Taiwan)
Performance Comparison of Distributed Frequency Assignment Algorithms
for Wireless Sensor Networks
S. Waharte & R. Boutaba, University of Waterloo (Canada)
Fast Handoff Support in an IP-evolved UMTS Architecture
By L. Dimopoulou, G. Leoleis & I. S. Venieris, National Technical
University of Athens (Greece)
12:30 Lunch
14:00 Session 6: Posters
Toward an Intelligent Bandwidth Broker Model for Resources Management in
DiffServ Networks
R. Nassrallah, M. Lemercier & D. Gaïti, Université Technique de Troyes
(France)
A Learning and Intentional Local Policy Decision Point for Dynamic QoS
Provisioning
F. Krief & D. Bouthinon, Université Paris XIII (France)
Generic IP Signaling Service Protocol
T. T. Luu & N. Boukhatem, Télécom ENST Paris (France)
On Distributed System Supervision - A Modern Approach: GeneSys
J.-E. Bohdanowicz, EADS Space Transportation (France), L. Kovacs, B.
Pataki, MTA STAKI (Hungary), A. Sadovykh, Université Paris 6 (France) &
S. Wesner, Stuttgart University (Germany)
Multigroup Communication Using Active Networks Technology
A. Chodorek, Kielce University of Technology, & R. R. Chodorek, AGH
University of Science and Technology (Poland)
Policy Usage in GMPLS Optical Networks
B. Daheb, Université Paris 6 & Institut Supérieur dElectronique de
Paris, & G. Pujolle, Université Paris 6 (France)
Beyond TCP/IP: a Context-Aware Architecture
G. Pujolle, H. Chaouchi, Université Paris 6, & D. Gaïti, Université
Technique de Troyes (France)
15:30 Coffee Break
16:00 Session 7: Intelligent Networks
Storage Capacity Allocation Algorithms for Hierarchical Content
Distribution
N. Laoutaris, V. Zissimopoulos & I. Stavrakakis, University of Athens
(Greece)
An Inference Algorithm for Probabilistic Fault Management in Distributed
Systems
J. Ding, FernUniversität Hagen (Germany) and Shanghai Jiao Tong
University (P. R. China), B. Krämer, FernUniversität Hagen (Germany), Y.
Bai, Shanghai Jiao Tong University (P. R. China) & H. Chen, East-China
Institute of Computer Technology (P. R. China)
New Protocol for Grouping Data Using Active Network
A. Moreno, B. Curto & V. Moreno, Universidad de Salamanca (Spain)
21:00 Banquet
NOVEMBER 5
09:00 Session 8: Invited Talk
Event-to-Sink Reliable Transport in Wireless Sensor Networks
Özgur B. Akan, Georgia Institute of Technology (USA)
10:00 Coffee break
10:30 Session 9: Performance Evaluation
An Algebraic Model of an Adaptive Extension of DiffServ for MANETs
O. Salem & A. Benzekri, Université Paul Sabatier de Toulouse (France)
Cross-layer Performance Evaluation of IP-based Applications Running over
the Air Interface
D. Moltchanov, Y. Koucheryavy & J. Harju, Tampere University of
Technology (Finland)
Collision Avoidance and Fairness Issues in Metropolitan Optical Access
Networks
N. Bouabdallah, Université Paris 6 and Alcatel Research & Innovation,
A.-L. Beylot, ENSEEIHT, & G. Pujolle, Université Paris 6 (France)
12:00 Closing Session
12:30 Lunch
