Assistan Professor

Automation Engineering

UNIWA, Building Z, Office ZB202

Contact days/time:  Mon 10:00-12:00 or by (email) appointment

Email : This email address is being protected from spambots. You need JavaScript enabled to view it. 

Brief CV   

Helen C. (Nelly) Leligou is currently assistant professor of the Automation Engineering department of the University of West Attica. She was lecturer and then assistant professor at the Electrical Engineering Dept. of the Technological Educational Institute of Sterea Ellada. Her research interests lie mainly in the areas of Information and Communication Technologies including a) routing protocols and trust management in Wireless Sensor Networks, b) control plane technologies in broadband networks including HFC, PON, WDM metro and core networks and c) industrial, embedded and network system design and development. Currently she is working on the design and (software) implementation of crowdsourcing approaches towards addressing societal challenges (e.g. energy efficiency) and advanced -technology learning systems. Her research results have been published in more than 100 scientific journals and conferences. She has participated in several EU-funded ACTS, IST, ICT and H2020 research projects in the above areas.

Education:


  • Dipl.-Ing., Electrical & Computer Engineering, NTUA, Greece. Thesis title: "Design of an Integrated Component for the Implementation of the SAR 3/4 Protocol", supervised by Prof. G. Stassinopoulos, 1995. 
  • Ph.D., (Excellent) Telecommunications Laboratory, Electrical and Computer Engineering Dept., NTUA, Greece. Thesis title: “New methods for access control in broadband networks”, supervised by Prof. N. Mitrou. ,2002

Languages spoken:


Greek (native speaker) English (proficient speaker), French (independent speaker)

Professional experience:


  • 2017 – today: UNIWA: Assistant professor of the Automation Engineering department
  • 2014 – 2017: Technological Educational Institute of Sterea Ellada: Assistant professo
  • 2007 – 2014: Technological Educational Institute of Halkida:Lecturer
  • 2008 – today: Communications networks and IT systems: Independent contractor to research institutes, public organizations and private companies undertaking RTD projects
  • 1997 – 2007: Telecommunications Laboratory of the National Technical University of Athens (NTUA):Research associate
  • 2007 – today: TEI of Sterea Ellada: Assistant professor/lecturer.Courses taught: “Computer Networks”, “Web applications”, “Digital Systems I – Laboratory course”, “Digital Systems II – Laboratory course”, “Object oriented programming- Laboratory course”.
  • 2004 – 2005: TEI of Piraeus, Dept of Automation: Research associate
  • 2006 - 2008: National Technical University of Athens: Visiting lecturer. Courses taught: MSc programme on “techno-economic systems”: “Enterprise information systems”, “Telecommunications market: technologies and operation”.
  • 2006 - 2007: University of Peloponnese: Visiting lecturer. Courses taught: “Control Plane-Resource allocation architectures”
  • 2005 - 2006: University of Sterea Ellada: Visiting assistant professor. Courses taught: “Computer architecture”, “Data Networks
  • 2000 - 2005: TEI of Piraeus: Teaching associate. Courses taught: “Computer Networks”, “Internet protocols”.
  • Leligou, H. C., Panagiotis, A., Tsakou, G., Vanderheiden, G., Touliou, K., Kocsis, O., & Katevas, N. (2017). Generic platform for registration and online offering of assistance-on-demand (AoD) services in an inclusive infrastructure. Universal Access in the Information Society, 1-25.
  • Tsampasis, E., Sarakis, L., Leligou, H. C., Zahariadis, T., & Garofalakis, J. (2016). Novel simulation approaches for smart grids. Journal of Sensor and Actuator Networks, 5(3), 11.
  • Sarakis, L., Orphanoudakis, T., Leligou, H. C., Voliotis, S., & Voulkidis, A. (2016). Providing entertainment app lications in VANET environments. IEEE Wireless Communications, 23(1), 30-37.
  • Karkazis, P., Trakadas, P., Zahariadis, T., Chatzigiannakis, I., Dohler, M., Vitaletti, A., ... & Sarakis, L. (2015). Resource and service virtualisation in M2M and IoT platforms. International Journal of Intelligent Engineering Informatics, 3(2-3), 205-224.
  • Karkazis, P., Sarakis, L. V., Velivassaki, T. E. N., Trakadas, P. T., Leligou, H. C. C., & Zahariadis, T. V. Energy-Efficient Trust Management Scheme in Mobile Wireless Sensor Networks.
  • Leligou, H. C., Chatzimisios, P., Sarakis, L., Orphanoudakis, T., Karkazis, P., & Zahariadis, T. (2015). An 802.11 p Compliant System Prototype Supporting Road Safety and Traffic Management Applications. In Transportation Systems and Engineering: Concepts, Methodologies, Tools, and Applications (pp. 909-926). IGI Global.
  • Kosmatos, E. A., Orpahnoudakis, T. G., Leligou, H. C., & Tsampasis, E. Traffic characterization for flexible service delivery in next-generation converged access networks. International Journal of Computers and Communications, (4), 107-115.
  • Karkazis, P., Trakadas, P., Leligou, H. C., Sarakis, L., Papaefstathiou, I., & Zahariadis, T. (2013). Evaluating routing metric composition approaches for QoS differentiation in low power and lossy networks. Wireless networks, 19(6), 1269-1284.
  • Leligou, H. C., Trakadas, P., Maniatis, S., Karkazis, P., & Zahariadis, T. (2012). Combining trust with location information for routing in wireless sensor networks. Wireless Communications and Mobile Computing, 12(12), 1091-1103.
  • T. Zahariadis, P. Trakadas, H.C. Leligou, S. Maniatis, P. Karkazis, “A novel trust-aware geographical routing scheme for wireless sensor networks”, Wireless Personal Communications, April 2012, DOI: 10.1007/s11277-012-0613-7.
  • Zahariadis, T., Sarakis, L., Leligou, H. C., Hatjiefremidis, A., Voliotis, S., & Georgouleas, K. (2012, October). The implications of Service Virtualisation on the routing procedure in Wireless Sensor Networks. In Telecommunications (BIHTEL), 2012 IX International Symposium on (pp. 1-7). IEEE.
  • Leligou, H. C., Massouros, C., Tsampasis, E., Zahariadis, T., Bargiotas, D., Papadopoulos, K., & Voliotis, S. (2011). Reprogramming wireless sensor nodes. International Journal of Computer Trends and Technology, 7, 1-8.
  • Kanonakis, K., Leligou, H., & Orphanoudakis, T. (2010). Online flow characterisation for measurement-based admission control: a practical perspective. Int. J. Res. Rev. Comput. Sci, 1(4), 149-157.
  • García-Otero, M., Zahariadis, T., Álvarez, F., Leligou, H. C., Población-Hernández, A., Karkazis, P., & Casajús-Quirós, F. J. (2010). Secure geographic routing in ad hoc and wireless sensor networks. EURASIP Journal on Wireless Communications and Networking, 2010(1), 975607.
  • Zahariadis, T., Leligou, H., Karkazis, P., Trakadas, P., Papaefstathiou, I., Vangelatos, C., & Besson, L. (2010). Design and implementation of a trust-aware routing protocol for large WSNs. International Journal of Network Security & Its Applications (IJNSA), 2(3), 52-68.
  • Zahariadis, T., Sarakis, L., Leligou, H. C., Hatjiefremidis, A., Voliotis, S., & Georgouleas, K. (2012, October). The implications of Service Virtualisation on the routing procedure in Wireless Sensor Networks. In Telecommunications (BIHTEL), 2012 IX International Symposium on (pp. 1-7). IEEE.
  • Orphanoudakis T. G. ,Drakos A., Leligou H. C. , Stavdas A. ,Boucouvalas A. (2009) . Dynamic Resource Allocation Guaranteeing Service Delivery over Large Scale Optical Networks. IEEE communications Letter.
  • Zahariadis, T., Leligou, H. C., Voliotis, S., Maniatis, S., Trakadas, P., & Karkazis, P. (2009, August). An energy and trust-aware routing protocol for large wireless sensor networks. In WSEAS international conference on Applied informatics and communications (AIC'09). World Scientific and Engineering Academy and Society (WSEAS).
  • Orphanoudakis, T., Leligou, H. C., Kosmatos, E., & Stavdas, A. (2009). Future Internet infrastructure based on the transparent integration of access and core optical transport networks. Journal of Optical Communications and Networking, 1(2), A205-A218.ISO 690
  • Kornaros, G., Sund, M., Lautenschlaeger, W., Leligou, H. C., & Orphanoudakis, T. (2010). Efficient implementation of a frame aggregation unit for optical frame-based switching. AEU-International Journal of Electronics and Communications, 64(1), 17-28.
  • Orphanoudakis, T., Leligou, H. C., Kosmatos, E., & Angelopoulos, J. D. (2009). Performance evaluation of GPON vs EPON for multi‐service access. International Journal of Communication Systems, 22(2), 187-202.
  • Stavdas, A., Orphanoudakis, T. G., Leligou, H. C., Kanonakis, K., Matrakidis, C., Drakos, A., ... & Lord, A. (2008). Dynamic CANON: A scalable multidomain core network. IEEE Communications Magazine, 46(6).
  • Angelopoulos J. D. , Kanonakis K. ,Leligou H.C. ,Orphanoudakis Th. ,Kornaros G. (2008, April).Multiplexing QoS-differentiated traffic in a packet-based local loop. The Mediterranean Journal of Computers and Networks, Volume 4, No. 2, ISSN: 1744-2397.
  • Stavdas, A., Kanonakis, K., Koukouvakis, G., Leligou, H. C., Orphanoudakis, T., & Angelopoulos, J. D. (2008). Reservations inside clusters of all‐optical core nodes achieve distributed burst aggregation and switching improving efficiency and loss. Transactions on Emerging Telecommunications Technologies, 19(1), 33-38.
  • Orphanoudakis, T., Leligou, H. C., Kosmatos, E., Angelopoulos, J. D., Kanonakis, K., Prezerakos, G., & Venieris, I. S. (2007). Efficient resource allocation with service guarantees in passive optical networks. Journal of Optical Networking, 6(7), 884-896.
  • Angelopoulos, J. D., Kanonakis, K., Koukouvakis, G., Leligou, H. C., Matrakidis, C., Orphanoudakis, T. G., & Stavdas, A. (2007). An optical network architecture with distributed switching inside node clusters features improved loss, efficiency, and cost. Journal of lightwave technology, 25(5), 1138-1146.
  • Angelopoulos, J. D., Dessauvage, C., Leligou, H. C., Kanonakis, K., Matrakidis, C., & Six, E. (2007). Dynamic address resolution for enhanced configurability in packet-based TDMA GPONs. Information Sciences, 177(16), 3327-3340.
  • Angelopoulos, J. D., Kanonakis, K., Leligou, H. C., Linardakis, C., Pountourakis, I. E., & Stavdas, A. (2006). Slotted optical switching with pipelined two-way reservations. Journal of lightwave technology, 24(10), 3616-3624.
  • Leligou, H. C., Kanonakis, K., Angelopoulos, J., Pountourakis, I., & Orphanoudakis, T. (2006). Efficient burst aggregation for QoS‐aware slotted OBS systems. Transactions on Emerging Telecommunications Technologies, 17(1), 93-98.
  • Leligou, H. C., Linardakis, C., Kanonakis, K., Angelopoulos, J. D., & Orphanoudakis, T. (2006). Efficient medium arbitration of FSAN‐compliant GPONs. international journal of communication systems, 19(5), 603-617.ISO 690
  • Orphanoudakis, T. G., Charopoulos, C. N., & Leligou, H. C. (2005). Leaky-bucket shaper design based on time interval grouping. IEEE communications letters, 9(6), 573-575.
  • Stavdas, A., Leligou, H. C., Kanonakis, K., Linardakis, C., & Angelopoulos, J. (2005). Scheme for performing statistical multiplexing in the optical layer. Journal of Optical Networking, 4(5), 237-247.
  • Linardakis, C., Leligou, H. C., Stavdas, A., & Angelopoulos, J. D. (2005). Using explicit reservations to arbitrate access to a metropolitan system of slotted interconnected rings combining TDMA and WDMA. Journal of lightwave technology, 23(4), 1576-1585.
  • Linardakis, C., Leligou, H. C., Stavdas, A., & Angelopoulos, J. (2004). Implementation of medium access control for interconnecting slotted rings to form a WDM metropolitan area network. Journal of Optical Networking, 3(11), 826-836.
  • Angelopoulos, J. D., Leligou, H. C., Argyriou, T., Zontos, S., Ringoot, E., & Van Caenegem, T. (2004). Efficient transport of packets with QoS in an FSAN-aligned GPON. IEEE Communications magazine, 42(2), 92-98.
  • Leligou, H., Orphanoudakis, T., & Angelopoulos, J. D. (2004). Design complexity evaluation of an access control mechanism targeting the performance enhancementof packet-based GPONs. WSEAS Transactions on Computers, 3(4), 1113-1119.
  • Leligou, H. C., Angelopoulos, J. D., Linardakis, C., & Stavdas, A. (2004). A MAC protocol for efficient multiplexing QoS-sensitive and best-effort traffic in dynamically configurable WDM rings. Computer Networks, 44(3), 305-317.
  • Skoufis, C., Sygletos, S., Leligou, N., Matrakidis, C., Pountourakis, I., & Stavdas, A. (2003). Data-centric networking using multiwavelength headers/labels in packet-over-WDM networks: A comparative study. Journal of lightwave technology, 21(10), 2110-2122.
  • Dittmann, L., Develder, C., Chiaroni, D., Neri, F., Callegati, F., Koerber, W., ... & Cerroni, W. (2003). The European IST project DAVID: A viable approach toward optical packet switching. IEEE Journal on selected areas in communications, 21(7), 1026-1040.
  • Angelopoulos, J., Leligou, H. C., Boettle, D., Wahl, S., Christ, P., & Jaehnert, J. (2002). Design and implementation of a DiffServ enabled HFC system offering strict QoS support. Transactions on Emerging Telecommunications Technologies, 13(6), 603-610.
  • Angelopoulos, J. D., Leligou, N., Orphanoudakis, T., & Pikrammenos, G. (2002). Using a multiple priority reservation MAC to support differentiated services over HFC systems. International Journal of Communication Systems, 15(4), 325-340.
  • Linardakis, C., Leligou, H. C., & Angelopoulos, J. D. (2004). Performance evaluation of a distributed credit-based fairness mechanism for slotted WDM rings. WSEAS Transactions on Communications, 3(2), 557-561.
  • Orphanoudakis, T. G., Kosmatos, E. A., Matrakidis, C., Stavdas, A., & Leligou, H. C. (2014, July). Hybrid resource reservation scheme for transparent integration of access and core optical transport networks. In Transparent Optical Networks (ICTON), 2014 16th International Conference on (pp. 1-4). IEEE.
  • Orphanoudakis, T. G., Matrakidis, C., Stavdas, A., & Leligou, H. C. (2013, June). Exploiting state of the art WDM-PON technologies for building efficient FTTC networks. In Transparent Optical Networks (ICTON), 2013 15th International Conference on (pp. 1-4). IEEE.
  • Orphanoudakis, T., Leligou, H. C., Kosmatos, E., & Stavdas, A. (2009, June). Optical metro network architecture based on traffic grooming over hybrid TDM/WDM PONs. In 4th European Conference on Networks and Optical Communications (NOC).
  • Stavdas, A., Politi, C., Leligou, H. C., Orphanoudakis, T. G., Angelopoulos, J. D., Matrakidis, C., & Drakos, A. (2008, June). Multi-granular optical cross-connects for the CANON network scenario. In Transparent Optical Networks, 2008. ICTON 2008. 10th Anniversary International Conference on (Vol. 1, pp. 21-24). IEEE.
  • Angelopoulos, J. D., Kanonakis, K., Leligou, H. C., Orphanoudakis, T., & Politi, T. (2007, July). Analytical evaluation and implementation of a novel slotted optical switching scheme with two way reservations. In Transparent Optical Networks, 2007. ICTON'07. 9th International Conference on (Vol. 3, pp. 205-208). IEEE.
  • Leligou, H. C., Eilenberger, G., Dembeck, L., Lautenschlaeger, W., Bunse, S., Stavdas, A., ... & Politi, C. T. (2006, October). Hybrid burst/packet switching architectures from IP NOBEL. In Optical Transmission Systems and Equipment for Networking V (Vol. 6388, p. 63880C). International Society for Optics and Photonics.ISO 690
  • Κανονάκης, Κ. (2008). Αρχιτεκτονικές Και Πρωτόκολλα Οπτικών Δικτύων Με Έμφαση Στα Δίκτυα Wdm Μεταγωγής Ριπών (Doctoral dissertation).
  • Angelopoulos, J. D., Caenegem, T. V., Leligou, N., Linardakis, C., Ringoot, E., Stavdas, A., & Zontos, S. (2003). A GPONG MAC Controller Adapting to Varying Number of Active Users, Traffic Volume and Qos. In International Conference on Computer, Communications and Control Technologies (pp. 1-2).
  • Charopoulos, C., Leligou, N., Stassinopoulos, G., Kornaros, G., & Orphanoudakis, T. Programmable peak-rate Gigabit shaper supporting ATM and packet-oriented traffic.
  • Orphanoudakis, T. H., Leligou, H. C., Kornaros, G., & Charopoulos, C. (2003). Accurate scheduler implementation for shaping flows of variable length packets in high-speed networking applications.
  • Angelopoulos, J. D., Argyriou, T., Leligou, H. C., & Linardakis, C. (2003). Evaluating a QoS-aware MAC protocol for packet-oriented GPON access network.
  • Stavdas, A., Matrakidis, C., Leligou, N., Sygletos, S., & Pountourakis, I. (2003). Efficient statistical multiplexing in the optical layer as a function of the reconfiguration speed requirements in a metropolitan area network. In Transparent Optical Networks, 2003. Proceedings of 2003 5th International Conference on (Vol. 1, pp. 32-36). IEEE.
  • Books:
    • E. A. Λελίγκου, Σ. Βολιώτης, Α. Κακαρούντας, «η λογική σχεδίαση στο εργαστήριο», ΙSBN:978-960-603-256-1, Ελληνικά Ακαδημαϊκά Ηλεκτρονικά Συγγράματα και βοηθήματα, kallipos.gr, 2015, διαθέσιμο στο σύνδεσμο https://repository.kallipos.gr/handle/11419/6440.
    • Νικόλαος Ασημάκης, Γιάννης Βουρβουλάκης, Θάνος Κακαρούντας, Ε. Α. Λελίγκου, «ΛΟΓΙΚΗ ΣΧΕΔΙΑΣΗ», ISBN: 978-960-87539-2-1, 2011.
  • Conferences and workshops:
    • [Pub128] Helen C. Leligou, Theodore Zahariadis, Lambros Sarakis, Eleftherios Tsampasis, Artemis Voulkidis, Terpsichori E. Velivassaki, “Smart Grid: a demanding use case for 5G technologies”, IEEE PerCom 2018 conference, workshop on Pervasive Sensing for Sustainable Smart Cities and Smart Buildings, Athens, Greece, March 2018 .
    • [Pub127] Panagiotis Trakadas, Panagiotis Karkazis, Helen-Catherine Leligou, Theodore Zahariadis, Wouter Tavernier, Thomas Soenen, Steven van Rossem, Luis Miguel Contreras Murillo, “Scalable Monitoring for Multiple Virtualized Infrastructures for 5G Services”, International Conference on Networks, ICN 2018, 22-26 April 2018, Athens, Greece.
    • [Pub126] Helen C. Leligou, Emmnouil Zacharioudakis, Louisa Bouta, Evangelos Niokos, “5G technologies boosting efficient mobile learning”, 21st Int. Conf. on Circuits, Systems, Communications and Computers, Crete Island, Greece, July 14-17, 2017.
    • [Pub125] Emmanouil Zacharioudakis, Helen C. Leligou, Aikaterini Papadopoulou, “Energy efficiency tools for residential users”, 21st Int. Conf. on Circuits, Systems, Communications and Computers, Crete Island, Greece, July 14-17, 2017.
    • [Pub124] Georgios Mylonas, D. Amaxilatis, H. Leligou, T.Zahariadis, E. Zacharioudakis, J. Hofstaetter, A. Friedl, F. Paganelli, G. Cuffaro, Jimm Lerch, «Addressing Behavioral Change towards Energy Efficiency in European Educational Buildings», Global IoT Summit, 2017, JUNE 6-9 2017, Geneva.
    • [Pub128] H.-C. Leligou, T. Orphanoudakis, A. Stavdas, C. Matrakidis, “Exploiting Shared-Access Passive Optical Networks for Building Distributed Datacenters”, Mini Conference on EMERGING ENGINEERING APPLICATIONS, 2015, November 26-27, 2015, Chalkida, Greece.
    • [Pub127] Christina (Tanya) Politi, Τheofanis Orphanoudakis, Evangelos Kosmatos, Helen C. Leligou, “Dynamic Resource Allocation in Elastic Optical Networks”, ICTON 2015, July 5-9, 2015, Budapest, Hungary.
    • [Pub126] Theofanis G. Orphanoudakis, Chris Matrakidis, Christina (Tanya) Politi, Alexandros Stavdas, Helen-Catherine Leligou, Evangelos Kosmatos, “Building Efficient End-to-End Service Transparent Fiber Networks Supporting Access Rates Beyond 10Gb/s”, International Conference on Systems and Networks Communications, ICSNC 2014, October 12 - 16, 2014 - Nice, France
    • [Pub125] Lambros Sarakis, Helen C. Leligou, Panagiotis Karkazis, Terpsichori-Helen Velivassaki, Theodore Zahariadis
    • [Pub124] "Evaluation of a transmission count-efficient metric for energy-aware routing in WSNs", TEMU 2014, Heraklion, 28-30 July, 2014.
    • [Pub128] Gianna Tsakou, Helen C. Leligou, Nikos Katevas, “A novel infrastructure facilitating access to, charging, ordering and funding of assistive services”, 16th International Conference on Human-Computer Interaction, June 2014, Heraklion , Greece
    • [Pub127] T. Zahariadis, L. Sarakis, P. Trakadas, S. Voliotis, H. C. Leligou, P. Karkazis, “Sensor Networks Virtualisation for efficient Smart Application Development”, 17th WSEAS International Conference on Systems, July 16-19, 2013, Rhodes Island, Greece.
    • [Pub126] E. A. Kosmatos, T G. Orphanoudakis, E. Tsampassis, H. C. Leligou, “Traffic Estimation in a PON-based Mobile Backhaul Environment”, 17th WSEAS International Conference on Systems, July 16-19, 2013, Rhodes Island, Greece.
    • [Pub125] Helen C. Leligou, Panagiotis Karkazis, Antonis Hatziefremidis, Theofanis Orphanoudakis, Theodore Zahariadis, “Implementation of road safety and traffic management applications over mobile opportunistic systems”, 17th WSEAS International Conference on Communications, July 16-19, 2013, Rhodes Island, Greece.
    • [Pub124] Antonios Hatziefremidis, Konstantinos E. Zarganis, Helen C. Leligou, Nikos Pleros, “Bit Error Rate analysis along a slanted path link between UAVs and Ground Stations”, International Conference on Transparent Optical Networks ICTON 2013, June 23 -27, 2013, Cartagena, Spain.
    • [Pub128] Theodore Zahariadis, Lambros Sarakis, Helen C. Leligou, Antonis Hatjiefremidis, Stamatis Voliotis, “The implications of Service Virtualisation on the routing procedure in Wireless Sensor Networks”, BIHTEL 2012, 25-27 October 2012, Serajevo, Bosnia Herzegovina.
    • [Pub127] T. G. Orphanoudakis, C. Matrakidis, C. (T) Politi, A. Stavdas, Helen-C. Leligou “Converged Access Network Infrastructure based on Virtual PONs”, International Conference on Telecommunications and Multimedia (TEMU2012), Heraklion, Greece, 31/7-1/8/2012
    • [Pub126] P. Karkazis, P. Trakadas, H. C. Leligou, L. Sarakis, Th. Zahariadis, T. Velivassaki, C. Capsalis, “Design of primary and composite routing metrics for RPL-compliant Wireless Sensor Networks,” International Conference on Telecommunications and Multimedia (TEMU2012), Heraklion, Greece, 31/7-1/8/2012
    • [Pub125] P. Karkazis, H. C. Leligou, T. Zahariadis, “Geographical Routing in Wireless Sensor Networks”, TEMU 2012, July August 2012, Heraklion, Crete, Greece
    • [Pub124] P. Karkazis, P. Trakadas, T. Zahariadis, A. Hatziefremidis, H. C. Leligou, “RPL Modeling in J-Sim Platform”, in 9th International Conference on Networked Sensing Systems, Antwerp, Belgum, June 11-14, 2012
    • [Pub128] H. C. Leligou, P. Karkazis, Th. Zahariadis, T. Velivasaki, Th. Tsiodras, C. Matrakidis, S. Voliotis, “The Impact of Indirect Trust Information Exchange on Network Performance and Energy Consumption in Wireless Sensor Networks”, ELMAR 2011.
    • [Pub127] Panagiotis Karkazis, Andiani Ventouri, Stamatis Voliotis, Theodore Zahariadis, Helen C. Leligou, Panagiotis Trakadas, “Configuring trust models for WSNs”, 18th International Conference on Systems, Signals and Image Processing, IWSSIP 2011, 16-18 June 2011, Sarajevo, Bosnia and Herzegovina
    • [Pub126] Helen C. Leligou, Theodore Zahariadis, Panagiotis Trakadas, Mischa Dohler, “Building trust among Virtual Interconnecting Smart Objects in the Future Internet”, Interconnecting Smart Objects with the Internet Workshop, Prague, Friday, 25th March 2011
    • [Pub125] Helen C. Leligou, Luis Redondo, Theodore Zahariadis, Daniel Rodriguez Retamosa, Panagiotis Karkazis, Ioannis Papaefstathiou, “Reconfiguration in Wireless Sensor Networks”, DeSE 2010 conference, London UK, September 2010.
    • [Pub124] Theodore Zahariadis, Panagiotis Trakadas, Helen Leligou, Panagiotis Karkazis, “Implementing a Trust-Aware Routing Protocol in Wireless Sensor Nodes”, DeSE 2010 conference, London UK, September 2010, DOI: 10.1109/DeSE.2010.15
    • [Pub128] H.C. Leligou, P. Trakadas, T. Zahariadis, P. Karkazis, S. Voliotis, “The benefits of indirect trust information exchange for supporting mobility in Wireless Sensor Networks”, TEMU 2010, Greece.
    • [Pub127] Theodore Zahariadis, Helen Leligou, Panagiotis Karkazis, Panagiotis Trakadas, “Energy efficiency and
    • [Pub126] implementation cost of trust-aware routing solutions in WSNs”, 14th Panhellenic Conference on Informatics (PCI 2010), 10-12 September 2010, Tripoli, Greece.
    • [Pub125] Stamatis Voliotis, Theodore Zahariadis, Helen Leligou, Dimitris Bargiotas, Panagiotis Trakadas and Panagiotis Karkazis, “A Scalable Geographical Routing approach for Wireless Sensor Networks”, IWSSIP 2010, June 17-19, 2010, Rio de Janeiro, Brazil.
    • [Pub124] S. Voliotis, H.C. Leligou, Theodore Zahariadis, “Incorporating trust in location-based routing protocols”, ELMAR2009, Zadar Croatia, September 2009.
    • [Pub124] Theodore Zahariadis, Helen C. Leligou, Stamatis Voliotis, Sotiris Maniatis, Panagiotis Trakadas, Panagiotis Karkazis, «An Energy and Trust-aware Routing Protocol for Large Wireless Sensor Networks», WSEAS Conference on communications, August 2009, Moscow, Russia
    • [Pub124] E. Ladis, I. Papaefstathiou, R. Marchesani, K. Tuinenbreijer, P. Langendörfer, T. Zahariadis, H. C. Leligou, L. Redondo, T. Riesgo, P. Kannegiesser, M. Berekovic, C. J. M. van Rijn , SMART: Secure, Mobile visual sensor networks ArchiTecture, IEEE SECON2009, 22-26 June, 2009 Rome Italy.
    • [Pub124] Theodore Zahariadis, Panagiotis Trakadas, Sotiris Maniatis, Panagiotis Karkazis, Helen C. Leligou, Stamatis Voliotis, “Efficient detection of routing attacks in Wireless Sensor Network”, 16th International Workshop on Systems, Signals and Image Processing, June 18-20, 2009, Chalkida, Greece, 10.1109/IWSSIP.2009.5367775.
    • [Pub124] Yannis Stelios, Nikos Papayanoulas, Panagiotis Trakadas, Sotiris Maniatis, Helen C. Leligou, Theodore Zahariadis, “A distributed energy-aware trust management system for secure routing in wireless sensor networks”, 1st International Conference on Mobile Lightweight Wireless Systems, MOBILIGHT 2009, May 18-20, 2009, Athens Greece, DOI: 10.1007/978-3-642-03819-8_9.
    • [Pub124] P. Trakadas, S. Maniatis, P. Karkazis, T. Zahariadis, H.C. Leligou, S. Voliotis, “A novel flexible trust management system for heterogeneous wireless sensor networks”, 9th International Symposium on Autonomous Decentralized Systems (ISADS 2009), Athens, Greece, March 23-25, 2009
    • [Pub124] K. Papadopoulos, S. Voliotis, E. Leligou, D. Bargiotas, P. Trakadas, Th. Zahariadis, “A Lightweight Trust Model for Wireless Sensor Networks”, International Conference on Numerical Analysis andApplied Mathematics, September 16-20, 2008, Kos Island, Greece.
    • [Pub124] George Kornaros, Wolfram Lautenschlaeger, Matthias Sund, Helen-Catherine Leligou, “Architecture And Implementation Of A Frame Aggregation Unit For Optical Frame-Based Switching”, International Conference on Field Programmable Logic and Applications (FPL), Heidelberg, Germany, September 08-10.
    • [Pub124] P. Trakadas, T. Zahariadis, H.C. Leligou, S. Voliotis, K. Papadopoulos, “AWISSENET: Setting up a Secure Wireless Sensor Network”, ELMAR 2008, 10-13 September, Zadar, Croatia
    • [Pub124] T. Zahariadis, E. Ladis, H.C. Leligou, P. Trakadas, C. Tselikis, K. Papadopoulos “Trust Models for Sensor Networks”, ELMAR 2008, 10-13 September, Zadar, Croatia.
    • [Pub124] P. Trakadas, T. Zahariadis, H.C. Leligou, S. Voliotis, K. Papadopoulos, “Analyzing Energy and Time Overhead of Security Mechanisms in Wireless Sensor Networks” IWSSIP 2008, Bratislava,Slovac Republic, June 25-28 2008
    • [Pub124] Kostas Papadopoulos, Theodore Zahariadis, Nelly Leligou, Stamatis Voliotis, “Sensor networks security issues in augmented home environment” IEEE International Symposium on Consumer Electronics 2008, April, 14-16th 2008, Algarve, Portugal.
    • [Pub124] George Kornaros, Theofanis Orphanoudakis and Helen-Catherine Leligou. “Architecture and Implementation of Traffic Shaper Integrating Networks-on-Chip and off-chip Networks”, 2nd HiPEAC Workshop on Reconfigurable Computing Göteborg, Sweden, January 27, 2008
    • [Pub124] T. Orphanoudakis, H.-C. Leligou, J. D. Angelopoulos, “Next generation ethernet access networks: GPON vs. EPON”, 7th WSEAS International conference on electronics, hardware, wireless and optical communications (EHAC'08), Cambridge, UK, February 20-22, 2008
    • [Pub124] J. Angelopoulos, K. Kanonakis, H. C. Leligou, Th. Orfanoudakis, M. Katsigiannis “Dynamic QoS provisioning for Ethernet-based networks” International E-Conference On Computer Science 2007 14 – 24 December 2007: Part II
    • [Pub124] K. Kanonakis, H-C. Leligou, John Angelopoulos, Edith Gilon, Jan Van Den Abeele, “Towards an autonomic access system providing QoS to services lacking explicit signaling” NOC 2007.
    • [Pub124] T. Orphanoudakis, H.-C. Leligou, E. Kosmatos, G. Prezerakos, “Dynamic Traffic Mulitplexing over EPONs Achieving Guranteed QoS and Optimal Bandwidth Utilization”, Photonics in Switching 2006, Crete, Greece, October 2006.
    • [Pub124] J. D. Angelopoulos, K. Kanonakis, H.C. Leligou, C. Linardakis, “Probe-and-go: a novel approach to OBS”, Photonics in Switching 2006, Crete, Greece, October 2006.
    • [Pub124] A. Stavdas, K. Kanonakis, G. Koukouvakis, H.C. Leligou, Th. Orphanoudakis, J.D. Angelopoulos, “Clustering core nodes allows efficient all-optical payload switching”, Photonics in Switching 2006, Crete, Greece, October 2006.
    • [Pub124] K. Kanonakis, G. Koukouvakis, H.C. Leligou, I. Pountourakis, A. Stavdas, J. D. Angelopoulos , “A novel all-optical core architecture employing contiguous bursts created under reservation-based control inside clusters of nodes”, Conference on Networks and Optical Communications, July 11-13, 2006, Berlin, Germany.
    • [Pub124] J. D. Angelopoulos, H.C. Leligou, K. Kanonakis, G. Rajan, “QoS in access Networks”, Conference on Networks and Optical Communications, July 11-13, 2006, Berlin, Germany.
    • [Pub124] Edith Gilon, Tim Gyselings, Karsten Oberle, Sylvie Danton, Sylvain Dumet, Cristina Peña, Bjoern Nagel, Les Humphrey, Wim Van de Meerssche, Nelly Leligou, Stephane Frenot, “Demonstration of an IP Aware Multi-Service Access Network”, BroadBand Europe conference, Bordeaux, France, 12-14 December 2005.
    • [Pub124] J. D. Angelopoulos, K. Kanonakis, Ch. Linardakis, H.C. Leligou, “Supporting Ethernet with QoS in a Local Access Multiplexer”, Conference on Networks and Optical 
Course name: Computer Networks
Course level: Undergraduate
Course type: Compulsory
Teaching: Theory + Laboratory
Hours per week: 3 (lectures) + 2 (lab)
   
Course name: Data Networks
Course level: Postgraduate
Course type: Compulsory
Teaching: Theory
Hours per week: 3 (lectures)
Semester: Second
Language: Greek

Helen C. (Nelly) Leligou has participated in more than 20 national and international projects. A list of the most important projects follows.

  • 2016 - 2018: Artificial Intelligence for enhanced learning effectiveness
  • 2016 – 2019: IoT-based applications for energy-efficient behaviour at schools
  • 2017 – today: Security for energy infrastructures
  • 2017 – today: 5G technologies for the energy sector
  • 2010 – 2017: Coordination of TEI of Sterea Ellada business relations and match-making with students of the Electrical Engineering department to carry out their obligatory internship and job training period in related job positions.
  • 2014 – 2017: Design and development of an Assistance on Demand platform for disabled people. The platform allows communication between those who provide assistance services of all kinds with persons in need and their carers and has relied on the most modern webserver technologies to support AAA accessibility
  • 2015 – 2016: Embedded software development for network nodes that can be covered / hidden to suit vulnerable environments (e.g. industrial).
  • 2014 – 2016: Support of the development of a common platform for large-scale trials and service offering across Europe towards promotion of FI-PPP offerings
  • 2011 – 2015: Trust Management and Routing in Large and Dense Wireless Sensor Networks
  • 2011 - 2015: Dynamic Resource Allocation in next Generation WDM
  • 2011 - 2013: Secure, Mobile visual sensor networks ARchiTecture
  • 2011 - 2014: Vehicular ad-hoc networks and applications
  • 2010 - 2012: Virtualized dIsTRibuted Platforms of smart Objects
  • 2007 - 2010: Ad-hoc personal area network & WIreless Sensor SEcure NETwork
  • 2004 - 2007: Next generation Optical networks for Broadband European Leadership
  • 2004 - 2007: Multi Service Access Everywhere
  • 2002 - 2005: Gigabit Passive Optical Network s(PON
  • 2000 - 2002: Protocol processor design and implementation in ASIC technologies
  • 2000 - 2002: Metropolitan interconnected WDM rings
  • 1998 - 1999: Hybrid Fiber coaxial systems

Go to top