HANDiCAMS: Heterogeneous Ad–hoc Networks for Distributed, Cooperative, and
Adaptive Multimedia Signal Processing
10/2013 – 09/2016
Katholieke Universiteit Leuven,
Dept. of Electrical Engineering
Coordinator: M. Moonen
Funded by: European Commission – FET
Summary: The project aims at developing a new ICT paradigm, which considers multiple
devices in a heterogeneous dynamic ad-hoc network that cooperate to perform multiple signal
processing tasks. The main objective is to develop distributed, cooperative and adaptive
algorithms for the acquisition, coding, processing, and in-network fusion of multimedia
signals. As the network nodes may be selfish, opportunistic, or malicious, general operating
principles will be designed that provide incentives for cooperation and assure network security.
ART–IN–SPACE: Adaptive, Robust to Threats, Immune to Nonlinearities, Sparse Opportunistic Cognitive Radio
10/2012 – 09/2015
National and Kapodistrian Univ. of Athens,
Dept. of Informatics and Telecomm.
Coordinator: N. Kalouptsidis
Funded by: NSRF, EXCELLENCE Program
Summary: Cognitive Radio (CR) systems have been recently proposed as the means to solve
the spectral congestion problem. This project aims at developing a game–theoretic framework
to considerably increase the performance of CR systems, and their ability to cope with grand
challenges of wireless networks regarding confidentiality, nonlinearities during transmission,
and cooperative protocols.
SWINCOM: Secure Wireless Nonlinear Communications at the Physical Layer
02/2012 – 07/2015
National and Kapodistrian Univ. of Athens,
Dept. of Informatics and Telecomm.
Coordinator: N. Kalouptsidis
Funded by: NSRF, THALIS Program
Summary: Next generation wireless networks impose strict requirements regarding the
reliability, power consumption, spectrum management, and the security offered. The proposed
research aims at making notable advancements in the above areas by developing novel tools and
algorithms based on the concepts of sparsity, compressive sampling and cooperation. Emphasis
is given on the construction of efficiently decodable LDPC codes (approaching secrecy
capacity) and the development of new PHY layer joint cryptographic and error–correcting
techniques.
Study of Complexity and Pseudorandomness Properties in Symmetric Encryption Algorithms
02/2006 – 03/2008
National and Kapodistrian Univ. of Athens,
Dept. of Informatics and Telecomm.
Coordinator: N. Kalouptsidis
Funded by: General Secretariat for Research and Technology – British Council
Summary: Research was conducted in cooperation with the information security group of the Royal
Holloway Univ. of London. It aimed at studying and analyzing the security offered by most contemporary
symmetric block cryptographic algorithms under the context of the new cryptanalytic attacks (algebraic
attacks, attacks based on Gröbner bases, time–memory trade off attacks, etc.).
Application of Economic Theories to Design and Develop Telecommunications and Information Systems and Products
09/2004 – 12/2007
National and Kapodistrian Univ. of Athens,
Dept. of Informatics and Telecomm.
Coordinator: N. Kalouptsidis
Funded by: 3rd Community Support Framework (O.P. Education II)
Summary: The project aimed at conducting research on security mechanisms, protocols, and architectures
for wireless mobile networks, as well as, on their impact on the demand for associated 3G and 4G services
offered by mobile telecomm. operators.
Study of Stream Ciphers in Symmetric Cryptography
01/2005 – 12/2005
National and Kapodistrian Univ. of Athens,
Dept. of Informatics and Telecomm.
Coordinator: N. Kalouptsidis
Funded by: General Secretariat for Research and Technology
Summary: The project aimed at detailed theoretical study of stream cryptographic algorithms. It was
comprised by an analysis of the existing algorithms for the computation of the maximum order complexity,
as well as, the development of new more efficient ones. Research results were published in international
journals and conferences.
SecurE–Justice
02/2004 – 08/2004
Project Automation SpA,
e–Business Division
Coordinator: F. Cunsolo
Funded by: European Commission
Summary: The project aimed at developing a secure communication and collaboration framework for the
judicial co–operation environment. I was the team leader, whereas other responsibilities included writing
of deliverables and management reports, and guiding the user requirements collection and the design process
of the platform.
Diastasis
12/2002 – 08/2004
European Dynamics SA,
e–Business Division
Coordinator: N. Kolokotronis
Funded by: Eurostat
Summary: The project aimed at defining, measuring, and exploiting new socio–economic indicators by
correlating web usage statistical information and household research data. I was the project coordinator,
and my responsibilities included the coordination of platform development, the definition of the data fusion
methodology for correlating various data sources, and the criteria used for assessing the results obtained.
Icte–Pan
12/2002 – 08/2004
European Dynamics SA,
e–Business Division
Coordinator: K. van Isacker
Funded by: European Commission
Summary: The project aimed at producing intelligent collaboration and transaction environments in public
administration networks. I was involved in the collection of user requirements, the analysis of best practices
in the area of e–government, and the development of the methodology to be used for evaluating the
resulting e–government platform.
Channel Sounder
02/2000 – 05/2001
National Technical Univ. of Athens,
Dept. of Electrical and Computer Engineering
Coordinator: P. Konstantinou
Funded by: General Secretariat for Research and Technology
Summary: The project aimed at the development of smart measuring devices for the multi–dimensional
characterization of wide area mobile radio–channels. I was involved with the development of DSP algorithms
for estimating the direction of arrival of the received signals at the antenna (MUSIC and its variants,
ESPRIT, SAGE, Expectation Maximization, etc.), the design of decimation/interpolation filters,
computation of the PDP, as well as the implementation of BPSK modulation/demodulation.
Billing Mall
04/1999 – 03/2001
National and Kapodistrian Univ. of Athens,
Dept. of Informatics and Telecomm.
Coordinator: D. Martakos
Funded by: General Secretariat for Research and Technology
Summary: The project aimed at studying inter–organizational information systems, the role of certification
authorities, the procedures for authenticating entities, implementing secure payments over the Internet, and
finally the development of an integrated e–commerce centre. I was leading the effort of developing
the security policy and determining the network security protocols to be adopted. I was also involved in the
design of the electronic bill presentment and payment model, based on the thin consolidator model.
Euromed
01/1998 – 12/1998
National Technical Univ. of Athens,
Dept. of Electrical and Computer Engineering
Coordinator: A. Marsh, S. Theodoridis
Funded by: European Commission
Summary: The project aimed at developing standards for processing and visualizing medical images, as
well as, DSP algorithms for medical image compression. I was involved with the analysis/study of several
image compression techniques and other structures in order to support progressive image transmission and
regions of interest.
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