• 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 ...
    • Article  

      Approximate Equilibria and Ball Fusion 

      Koutsoupias, Elias; Mavronicolas, Marios; Spirakis, Paul G. (2003)
      We consider selfish routing over a network consisting of m parallel links through which n selfish users route their traffic trying to minimize their own expected latency. We study the class of mixed strategies in which the ...
    • Article  

      BlackOut: Enabling fine-grained power gating of buffers in Network-on-Chip routers 

      Zoni, D.; Canidio, A.; Fornaciari, W.; Englezakis, Panayiotis; Nicopoulos, Chrysostomos A.; Sazeides, Yiannakis (2017)
      The Network-on-Chip (NoC) router buffers play an instrumental role in the performance of both the interconnection fabric and the entire multi-/many-core system. Nevertheless, the buffers also constitute the major leakage ...
    • Conference Object  

      Computing Nash equilibria for scheduling on restricted parallel links 

      Gairing, M.; Lücking, T.; Mavronicolas, Marios; Monien, Burkhard (2004)
      We consider the problem of routing n users on m parallel links, under the restriction that each user may only be routed on a link from a certain set of allowed links for the user. Thus, the problem is equivalent to the ...
    • Conference Object  

      Congestion control for differentiated-services using non-linear control theory 

      Pitsillides, Andreas; Ioannou, Petros A.; Rossides, Loukas (2001)
      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. Using ...
    • Conference Object  

      Congestion control for differentiated-services using non-linear control theoryABC 

      Pitsillides, Andreas; Ioannou, Petros A.; Rossides, Loukas (2001)
      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. Using ...
    • Article  

      Content Delivery Networks: Status and Trends 

      Vakali, Athena I.; Pallis, George C. (2003)
      An insight into the content delivery networks (CDN) architecture and popular CDN service providers is performed. CDNs improve network performance and offer fast and reliable applications and services by distributing content ...
    • Conference Object  

      Cooperation among access points for enhanced quality of service in dense wireless environments 

      Antoniou, Josephina; Lesta, Vicky Papadopoulou; Libman, L.; Pitsillides, Andreas; Dehkordi, H. R. (Institute of Electrical and Electronics Engineers Inc., 2014)
      The high popularity of Wi-Fi technology for wireless access has led to a common problem of densely deployed access points (APs) in residential or commercial buildings, competing to use the same or overlapping frequency ...
    • Conference Object  

      Coordinating web services using channel based communication 

      Lemniotes, Theophilos; Papadopoulos, George Angelos; Arbab, Farhad (2004)
      In this work we investigate the use of a new concept in component communication during the coordination of Web Services, expressed by the channel based coordinating communication system called Reo. The role of Reo is to ...
    • Article  

      Direct routing: Algorithms and complexity 

      Busch, Costas; Magdon-Ismail, M.; Mavronicolas, Marios; Spirakis, Paul G. (2006)
      Direct routing is the special case of bufferless routing where N packets, once injected into the network, must be delivered to their destinations without collisions. We give a general treatment of three facets of direct ...
    • Conference Object  

      A discrete event based simulation environment for enhanced UMTS 3 rd generation networks 

      Antoniou, Josephina; Vassiliou, Vasos; Pitsillides, Andreas; Hadjipollas, George; Jacovides, N. (2004)
      This paper presents a new system level simulator that has been developed to evaluate E-UMTS (Enhanced Universal Mobile Telecommunication Systems) 3G Networks. The article describes how the simulator supports different ...
    • Article  

      Evolutionary-fuzzy prediction for strategic ID-QoS: Routing in broadband networks 

      Vasilakos, Athanasios V.; Ricudis, C.; Anagnostakis, Kostas G.; Pedrycz, W.; Pitsillides, Andreas; Gao, X. Z. (2001)
      This article presents an application of evolutionary-fuzzy prediction in interdomain routing of broadband network connections with Quality of Services requirements in the case of an integrated ATM and SDH networking ...
    • Conference Object  

      Fuzzy explicit marking for congestion control in differentiated services networks 

      Chrysostomou, Chrysostomos; Pitsillides, Andreas; Hadjipollas, George; Sekercioglu, Y. Ahmet; Polycarpou, Marios M. (2003)
      This paper presents a new active queue management scheme, fuzzy explicit marking (FEM), implemented within the differentiated services (Diffserv) framework to provide the congestion control using a fuzzy logic control ...
    • Conference Object  

      Network uncertainty in selfish routing 

      Georgiou, Chryssis; Pavlides, Theophanis; Philippou, Anna (2006)
      We study the problem of selfish routing in the presence of incomplete network information. Our model consists of a number of users who wish to route their traffic on a network of m parallel links with the objective of ...
    • Conference Object  

      NoCAlert: An on-line and real-time fault detection mechanism for network-on-chip architectures 

      Prodromou, Andreas; Panteli, Andreas; Nicopoulos, Chrysostomos A.; Sazeides, Yiannakis (2012)
      The widespread proliferation of the Chip Multi-Processor (CMP) paradigm has cemented the criticality of the on-chip interconnection fabric. The Network-on-Chip (NoC) is becoming increasingly susceptible to emerging reliability ...
    • Article  

      The Price of Anarchy for restricted parallel links 

      Gairing, M.; Lücking, T.; Mavronicolas, Marios; Monien, Burkhard (2006)
      In the model of restricted parallel links, n users must be routed on m parallel links under the restriction that the link for each user be chosen from a certain set of allowed links for the user. In a (pure) Nash equilibrium, ...
    • Conference Object  

      A Study on Workload Characterization for a Web Proxy Server 

      Pallis, George C.; Vakali, Athena I.; Angelis, Lefteris; Saïd Hacid, M. (2003)
      The popularity of the World-Wide-Web has increased dramatically in the past few years. Web proxy servers have an important role in reducing server loads, network traffic, and client request latencies. This paper presents ...
    • Conference Object  

      Universal bufferless routing 

      Busch, Costas; Magdon-Ismail, M.; Mavronicolas, Marios (2005)
      Given an arbitrary network, and a routing problem with congestion C and dilation D, a long standing open problem is to show the existence of bufferless routing algorithms with optimal performance guarantees (routing time ...