AIT Community / Faculty / Research Scientists / Philippos Tragas

CONTACT INFORMATION Athens Information Technology 19.5 Km Markopoulo Avenue, 19002 Peania, Attiki, Greece P.O. Box 68 Phone: +302106682760 Fax: +302106682729 E-mail: ptra <AT> ait <dot> edu <dot> gr

SUMMARY
Mr. Philippos Tragas was born in Athens, Greece, in 1981. He holds a position of research scientist in AIT. He received the Physics degree in 2004 from the Department of Physics, University of Patras, Greece with specialization in Electronics and Computers. He received a M.Sc. degree in Information and Telecommunication technologies in 2006 offered by “Athens Information Technology” (AIT) and a M.Sc. degree in Radio Communications and Electronics in 2010 offered by Department of Informatics & Department of Physics, University of Athens, Greece. From October 2005 until June 2006 he was an Assistant to the Electronics Laboratory of the Department of Informatics & Telecommunications and of the Department of Physics at the University of Athens. Since April 2006 he has joined the “Broadband Wireless and Sensor Network” group of the Athens Information Technology (A.I.T.), “Centre of Excellence for Research and Graduate Education”, as a research scientist. His research interests include Antenna Designing for Mobile applications, Adaptive Algorithms for MIMO systems, Wireless Sensor Network Designing and Programming, Electronically Steerable Passive Array Radiators (ESPAR) antennas, Indoor Localization. He is a member of IEEE.

SCIENTIFIC INTEREST

Smart Antenna Systems:

• Antenna Designing
• Compact antennas for wireless devices
• directive antennas
• Electronically Steerable Passive Array Radiators (ESPAR) antennas
Adaptive Algorithms:

• Developing adaptive algorithms used in MIMO systems for indoor localization
• Algorithms for 3x3 MIMO testbed
Wireless Communications:

• Ad-Hoc and Sensor Networks including device designing and applications implementation for smart living
• Channel measuring
• Evaluation and testing of new telecommunication technologies

EDUCATION

2006-2010, National and Kapodistrian University of Athens, Department of Informatics and Telecommunications joined with Department of Physics
Master of Science in Radiocommunications and Electronics
Master Thesis: Model system using RFID of meat traceability “from farm to fork”
Project: Techno-economic analysis of an optical backbone network in the region of Achaia

2005-2006, Athens Information Technology,
Master of Science in Information and Telecommunications Technology
Master Thesis: “A printed ESPAR Antenna for Mobile Computing Applications”
Projects: Speaker Identification using Linear Discriminant Analysis
Radio Frequency Identification (RFID) “Tagging the Future”

1999-2004, Department of Physics, University of Patras,
Degree in Physics
Specialized in Electronics and Computers
Thesis: “GSM Network and simulation with Simulink of modulation GMSK”

PROFESSIONAL EXPERIENCE

April 2006 - Present: Athens Information Technology
Position: Research Scientist, Broadband Wireless and Sensor Network Group,

March - June 2006: Department of Physics, University of Athens
Position: Assistant to the Electronics Laboratory II (Undergraduate course)

January - March 2006: Department of Physics, University of Athens
Position: Assistant to the Analogue Electronics Laboratory (Master course)

October 2005-January 2006: Department of Informatics & Telecommunications, University of Athens
Position: Assistant to the Electronics Laboratory I (Undergraduate course)

December 2003-April 2004: OTE S.A.
Position: Department of Catalogue Information, Telephone Services, Patras

PUBLICATIONS
Journals

• Alrabadi, O.N., Divarathne, C., Tragas, P., Kalis, A., Marchetti, N., Papadias, C.B., Prasad, R., “Spatial Multiplexing with a Single Radio: Proof-of-Concept Experiments in an Indoor Environment with a 2.6-GHz Prototype,” Communications Letters, IEEE , vol.15, no.2, pp.178-180, February 2011

• Philippos Tragas and Elias Manolakos, “Traceability from 'farm to fork' using RFID technology”, 17th IEEE International Conference on Electronics, Circuits, and Systems, Athens, Greece, December 12-15, 2010
• F. Ellinger, R. Eickhoff, R. Gierlich, J. Huttner, A. Ziroff, S. Wehrli, T. U?muller, J. Carls, V. Subramanian, M. Krcmar, R. Mosshammer, S. Spiegel, D. Doumenis, A. Kounoudes, K. Kurek, Y. Yashchyshyn, C. B. Papadias, P. Tragas, A. Kalis, E. Avatagelou, “Local Positioning for Wireless Sensor Networks”, IEEE Globecom, Washington, DC, USA, November 26-30, 2007 [pdf]
• Philippos Tragas, Constantinos Papadias, Antonis Kalis, “Super-resolution signal processing techniques for accurate indoor positioning finding”, Seminar on Smart Antennas and Cooperative Communication, London, UK, October 22, 2007 [pdf]
• Ch. Doukas, Il. Maglogiannis, Ph. Tragas, D. Liapis, G. Yovanof , “Patient Fall Detection using Support Vector Machines”, 4th IFIP Conference on Artificial Intelligence Applications & Innovations, Athens, Greece, September 19-21, 2007 [pdf]
• Ph. Tragas, A. Kalis, C. Papadias, F. Ellinger, R. Eickhoff , Th. Ussmuller, R. Mosshammer, M. Huemer, A. Dabek, D. Doumenis, A. Kounoudes, “RESOLUTION: Reconfigurable Systems for Mobile Local Communication and Positioning”, 16th IST Mobile & Wireless Communications Summit, Budapest, Hungary, July 1-5, 2007 [pdf]

RESEARCH PROGECTS

“HOME AUTOMATION” (Design and implementation of novel and innovative wireless sensor networks for home automation), direct funding, (May 2011 – present)

• Designing the PCB and assembling the electronic parts of the wireless sensor nodes
• Programming the wireless sensor nodes consisting of MSP430 and CC1110

• Designing and supporting the website of the project

• Developing and programming an experimental platform system where the developed techniques from the project will be put at test

• Creating and editing AIT’s contribution to the proposal
• Designing, implementing and measuring add-ons concerning antennas for existing wireless sensor devices (Micaz, Mica2, Firefly)
• Implementing localisation algorithms

• Authoring the project deliverables
• Developing signal processing techniques for improving indoor localisation accuracy

• Designing, implementing and measuring a printed antenna for 24 GHz ISM band with 128 antenna patch elements