Browsing by Author "Lestas, Marios"

Now showing items 1-20 of 36

    • Article  

      Adaptive congestion protocol: A congestion control protocol with learning capability 

      Lestas, Marios; Pitsillides, Andreas; Ioannou, Petros A.; Hadjipollas, George (2007)
      There is strong evidence that the current implementation of TCP will perform poorly in future high-speed networks. To address this problem many congestion control protocols have been proposed in literature which, however, ...
    • Conference Object  

      Adaptive information hovering in VANETs: Robustness and enhancements 

      Xeros, Andreas; Constantinides, Themis; Lestas, Marios; Mylonas, Yiannos; Pitsillides, Andreas; Lesta, Vicky Papadopoulou (IEEE Computer Society, 2013)
      Information hovering is relevant in vehicular ad hoc networks in cases where critical information needs to be made available to all vehicles in a bounded geographical area, called the hovering area, for a specific amount ...
    • Article  

      Adaptive nonlinear congestion controller for a differentiated-services framework 

      Pitsillides, Andreas; Ioannou, Petros A.; Lestas, Marios; Rossides, Loukas (2005)
      The growing demand of computer usage requires efficient ways of managing network traffic in order to avoid or at least limit the level of congestion in cases where increases in bandwidth are not desirable or possible. In ...
    • Conference Object  

      Adaptive optimization for active queue management supporting TCP flows 

      Baldi, S.; Kosmatopoulos, E. B.; Pitsillides, Andreas; Lestas, Marios; Ioannou, Petros A.; Wan, Y. (Institute of Electrical and Electronics Engineers Inc., 2016)
      An adaptive decentralized strategy for active queue management of TCP flows over communication networks is presented. The proposed strategy solves locally, at each link, an optimal control problem, minimizing a cost composed ...
    • Conference Object  

      Adaptive probabilistic flooding for Information Hovering in VANETs 

      Xeros, Andreas; Lestas, Marios; Andreou, Maria I.; Pitsillides, Andreas (2010)
      Information Hovering applies in many applications in Vehicular Ad Hoc Networks, where useful information needs to be made available to all vehicles within a confined geographical area for a specific time interval. A ...
    • Conference Object  

      Adaptive probabilistic flooding for nanonetworks employing molecular communication 

      Saeed, T.; Lestas, Marios; Pitsillides, Andreas (Institute of Electrical and Electronics Engineers Inc., 2016)
      Probabilistic flooding is a simple to implement, information dissemination scheme which is known to alleviate the broadcast storm problem. Simplicity of implementation is a critical requirement of network protocol design ...
    • Conference Object  

      Analysis of probabilistic flooding in VANETs for optimal rebroadcast probabilities 

      Saeed, T.; Lestas, Marios; Mylonas, Yiannos; Pitsillides, Andreas; Lesta, Vicky Papadopoulou (Institute of Electrical and Electronics Engineers Inc., 2016)
      A number of probabilistic flooding schemes have been recently considered in VANETs to address problems of information dissemination in safety applications. The design approach has so far been simulative, a method which ...
    • Article  

      Balancing wireless data broadcasting and information hovering for efficient information dissemination 

      Liaskos, Christos K.; Xeros, Andreas; Papadimitriou, Georgios I.; Lestas, Marios; Pitsillides, Andreas (2012)
      Wireless data broadcasting is an efficient, bandwidth preserving way of data dissemination. However, as the amount of data increases, the waiting time of the clients becomes unacceptably high. The present paper proposes ...
    • Article  

      Broadcast scheduling with multiple concurrent costs 

      Liaskos, Christos K.; Xeros, Andreas; Papadimitriou, Georgios I.; Lestas, Marios; Pitsillides, Andreas (2012)
      Data dissemination via periodic broadcasting considers a set of items, each with a given request probability, size and scheduling cost. The goal is to construct a broadcast schedule that minimizes the mean query serving ...
    • Conference Object  

      A congestion control algorithm for max-min resource allocation and bounded queue sizes 

      Lestas, Marios; Ioannou, Petros A.; Pitsillides, Andreas (2004)
      This paper deals with the congestion control problem in computer networks which is viewed as a resource allocation problem constrained by the additional requirement that the queue sizes need to be bounded. We propose a ...
    • Conference Object  

      Fault Adaptive Routing in Metasurface Controller Networks 

      Saeed, Taqwa; Skitsas, Constantinos; Kouzapas, Dimitrios; Lestas, Marios; Soteriou, Vassos; Philippou, Anna; Abadal, Sergi; Liaskos, Christos; Petrou, Loukas; Georgiou, Julius; Pitsillides, Andreas (2018)
      HyperSurfaces are a merge of structurally reconfigurable metasurfaces whose electromagnetic properties can be changed via a software interface, using an embedded miniaturized network of controllers, thus enabling novel ...
    • Conference Object  

      Fault Adaptive Routing in Metasurface Controller Networks 

      Saeed, Taqwa; Skitsas, Constantinos; Kouzapas, Dimitrios; Lestas, Marios; Soteriou, Vassos; Philippou, Anna; Abadal, Sergi; Liaskos, Christos K.; Petrou, Loukas; Georgiou, Julius; Pitsillides, Andreas (2018)
      HyperSurfaces are a merge of structurally reconfigurable metasurfaces whose electromagnetic properties can be changed via a software interface, using an embedded miniaturized network of controllers, thus enabling novel ...
    • Conference Object  

      Feedback Based Beam Steering for Intelligent Metasurfaces 

      Ashraf, Nouman; Saeed, Taqwa; Ansari, Rafay Iqbal; Lestas, Marios; Liaskos, Christos K.; Pitsillides, Andreas (2019)
      This paper promotes the use of feedback in the design of a beam steering application using the intelligent metasurface paradigm. The control objective is to direct the incoming signal on the metasurface towards a single ...
    • Article  

      Global asymptotic stability of max-min congestion control schemes 

      Lestas, Marios; Ioannou, Petros A.; Pitsillides, Andreas; Hadjipollas, George (2017)
      A number of congestion control schemes which adopt the max-min fairness criterion and do not require maintenance of per flow states within the network have been proposed in the literature. The establishment of global ...
    • Conference Object  

      Information hovering in vehicular ad-hoc networks 

      Xeros, Andreas; Lestas, Marios; Andreou, Maria I.; Pitsillides, Andreas; Ioannou, Petros A. (2009)
      Information Hovering is a relatively new concept of information dissemination over a mobile set of peers. It naturally applies in many applications in Vehicular Ad-Hoc Networks, where useful information needs to be made ...
    • Article  

      Modeling Probabilistic Flooding in VANETs for Optimal Rebroadcast Probabilities 

      Saeed, Taqwa; Mylonas, Yiannos; Pitsillides, Andreas; Papadopoulou, Vicky; Lestas, Marios (2019)
      Probabilistic flooding is commonly considered in vehicular ad-hoc networks (VANETs) to alleviate the celebrated broadcast storm problem. Heuristics and simulations have so far proved to be an efficient way with which to ...
    • Article  

      Nature inspired node density estimation for molecular nanonetworks 

      Saeed, T.; Lestas, Marios; Pitsillides, Andreas (2017)
      The problem of estimating the node density in ad hoc networks is a significant one for protocol design. In molecular nanonetworks, the node density estimation problem poses additional challenges due to the limited processing ...
    • Conference Object  

      Nature inspired node density estimation for molecular NanoNetworks 

      Saeed, T.; Lestas, Marios; Pitsillides, Andreas (Association for Computing Machinery, Inc, 2016)
      Inspired by the quorum sensing process, we propose and analyze a distributed density estimation scheme for molecular nanonetworks, based on synchronous transmission of the network nodes and sensing of the received molecular ...
    • Article  

      A new estimation scheme for the effective number of users in internet congestion control 

      Lestas, Marios; Pitsillides, Andreas; Ioannou, Petros A.; Hadjipollas, George (2011)
      Many congestion control protocols have been recently proposed in order to alleviate the problems encountered by TCP in high-speed networks and wireless links. Protocols utilizing an architecture that is in the same spirit ...
    • Conference Object  

      On a hybrid model for max-min congestion controllers 

      Lestas, Marios; Ioannou, Petros A.; Pitsillides, Andreas (2004)
      In this paper we address the congestion control problem in computer networks offering a single class of best effort service. The problem is viewed as a resource allocation problem. The objective is to distribute the available ...