H
Helen C. Leligou
Researcher at American Hotel & Lodging Educational Institute
Publications - 86
Citations - 1022
Helen C. Leligou is an academic researcher from American Hotel & Lodging Educational Institute. The author has contributed to research in topics: Wireless sensor network & Routing protocol. The author has an hindex of 18, co-authored 74 publications receiving 885 citations. Previous affiliations of Helen C. Leligou include University of the West & University of Peloponnese.
Papers
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Journal ArticleDOI
Efficient transport of packets with QoS in an FSAN-aligned GPON
John D. Angelopoulos,Helen C. Leligou,T. Argyriou,S. Zontos,Edwin Augustus Philomena Ringoot,T.N.M. Van Caenegem +5 more
TL;DR: The article presents an Ethernet gigabit PON (GPON) system aligned with the philosophy of the evolving FSAN (full service access network) ITU-T specification, which focuses on the efficient support of any level of quality of service.
Journal ArticleDOI
A Novel Trust-Aware Geographical Routing Scheme for Wireless Sensor Networks
Theodore Zahariadis,Panagiotis Trakadas,Helen C. Leligou,Sotiris Maniatis,Panagiotis Karkazis +4 more
TL;DR: A secure routing protocol which adopts the geographical routing principle to cope with the network dimensions, and relies on a distributed trust model for the detection and avoidance of malicious neighbours, capable of defending against an increased set of routing attacks including attacks targeting the indirect trust management scheme.
Proceedings ArticleDOI
Design of primary and composite routing metrics for RPL-compliant Wireless Sensor Networks
Panagiotis Karkazis,Helen C. Leligou,Lambros Sarakis,Theodore Zahariadis,Panagiotis Trakadas,Terpsichori-Helen Velivassaki,Christos N. Capsalis +6 more
TL;DR: Find ways to quantify the routing metrics so that they can be combined in an additive or lexical manner and use extensive simulation results to evaluate the impact of several routing metrics on the achieved performance.
Journal ArticleDOI
Evaluating routing metric composition approaches for QoS differentiation in low power and lossy networks
Panagiotis Karkazis,Panagiotis Trakadas,Helen C. Leligou,Lambros Sarakis,Ioannis Papaefstathiou,Theodore Zahariadis +5 more
TL;DR: This paper specifies primary routing metrics and ways to combine them into composite routing metrics, proves that these metrics can be utilized in such a way that the routing protocol converges to optimal paths in a loop-free manner and applies the proposed approach to the RPL protocol specified by the ROLL group of IETF.
Journal ArticleDOI
Comparison of Management and Orchestration Solutions for the 5G Era
Panagiotis Trakadas,Panagiotis Karkazis,Helen C. Leligou,Theodore Zahariadis,Felipe Vicens,Arturo Zurita,Pol Alemany,Thomas Soenen,Carlos Parada,Jose Bonnet,Eleni Fotopoulou,Anastasios Zafeiropoulos,Evgenia Kapassa,Marios Touloupou,Dimosthenis Kyriazis +14 more
TL;DR: An innovative approach for managing and orchestrating Network Services (NS) is developed, called SONATA, and it is compared with OSM and Cloudify, which are two of the most known open-source Management and Orchestration (MANO) frameworks.