• Conference Object  

      Network Coding for Security Against Eavesdropping Attacks in Elastic Optical Networks 

      Savva, Giannis; Manousakis, Konstantinos; Ellinas, Georgios (Springer International Publishing, 2020)
      In this work, routing and spectrum allocation (RSA) algorithms together with network coding (NC) are proposed for elastic optical networks. NC has been used in optical networks for protection against link failures and also ...
    • Conference Object  

      On learning bandwidth allocation models for time-varying traffic in flexible optical networks 

      Panayiotou, Tania; Manousakis, Konstantinos; Chatzis, Sotirios P.; Ellinas, Georgios (2018)
      We examine the problem of bandwidth allocation (BA) on flexible optical networks in the presence of traffic demand uncertainty. We assume that the daily traffic demand is given in the form of distributions describing the ...
    • Conference Object  

      Parallel Ant Colony Optimization for the Electric Vehicle Routing Problem 

      Mavrovouniotis, Michalis; Li, Changhe; Ellinas, Georgios; Polycarpou, Marios (2019)
      Parallelizing metaheuristics has become a common practice considering the computation power and resources available nowadays. The aim of parallelizing a metaheuristic is either to increase the quality of the generated ...
    • Conference Object  

      Physical Layer-Aware Routing, Spectrum, and Core Allocation in Spectrally-Spatially Flexible Optical Networks with Multicore Fibers 

      Savva, Giannis; Ellinas, Georgios; Shariati, Behnam; Tomkos, Ioannis (2018)
      In this work, efficient routing, spectrum, and core allocation (RSCA) techniques are proposed for spatial division multiplexed (SDM) elastic optical networks (EONs) utilizing multicore fibers (MCFs). These techniques provide ...
    • Conference Object  

      Resilient Wheel-Based Optical Access Network Architecture 

      Christodoulou, Chrysovalanto; Ellinas, Georgios (2019)
      This work proposes a resilient wheel-based optical access network architecture for backhauling network traffic. This proposed resilient architecture can efficiently support not only the fixed users but also the mobile users ...
    • Conference Object  

      Secure Event Logging Using a Blockchain of Heterogeneous Computing Resources 

      Koumidis, K.; Kolios, P.; Ellinas, Georgios; Panayiotou, Christos G. (2019)
      Secure logging is essential for the integrity and accountability of cyber-physical systems (CPS). To prevent modification of log files the integrity of data must be ensured. In this work, we propose a solution for secure ...
    • Conference Object  

      Spread Spectrum over OFDM for Enhanced Security in Elastic Optical Networks 

      Savva, Giannis; Manousakis, Konstantinos; Ellinas, Georgios (2018)
      In this work, spread spectrum with signal overlapping techniques are used to secure confidential connections against eavesdropping. Routing and spectrum allocation algorithms are proposed in order to establish a set of ...
    • Conference Object  

      Survivable and Secure Elastic Optical Networks using Network Coding 

      Savva, Giannis; Manousakis, Konstantinos; Ellinas, Georgios (2019)
      In this work, the concept of network coding (NC) is used in conjunction with the routing and spectrum allocation (RSA) problem to jointly provide security and protection in elastic optical networks (EONs). Specifically, ...
    • Article  

      Welcome note 

      Pattichis, Constantinos S.; Kyriakides, Elias; Ellinas, Georgios; Kyriacou, E. (2016)