Browsing by Subject "Telecommunication traffic"

Now showing items 1-20 of 34

    • Conference Object  

      Adaptive connection admission and flow control: quality of service with high utilisation 

      Pitsillides, Andreas; Lambert, Jim (IEEE, 1994)
      In this paper, we use adaptive feedback and adaptive feedforward control methodologies to avoid congestion at high server utilisation. This addresses the combined connection admission and flow control problem (generic ...
    • 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  

      Adaptive virtual circuit routing 

      Economides, Anastasios A.; Ioannou, Petros A.; Silvester, J. A. (1996)
      The paper deals with the adaptive routing problem in virtual circuit communication networks. A newly arriving call at a source node is routed along the minimum length path to its destination node. All packets belonging to ...
    • 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 ...
    • 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 ...
    • Conference Object  

      Congestion control in differentiated services networks using fuzzy logic 

      Chrysostomou, Chrysostomos; Pitsillides, Andreas; Hadjipollas, George; Polycarpou, Marios M.; Sekercioglu, Y. Ahmet (2004)
      The provision of quality of service (QoS) in a differentiated services (Diff-Serv) environment requires an adequate differentiation between high-priority/assured and low-priority/best-effort classes of service in the ...
    • 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  

      Dynamic routing and admission control for virtual circuit networks 

      Economides, Anastasios A.; Ioannou, Petros A.; Silvester, J. A. (1995)
      The dynamic joint routing and admission control problem in multiple class multiple source-destination virtual circuit networks is considered. A nonlinear dynamic queueing model for virtual circuit networks that considers ...
    • Article  

      Effective control of traffic flow in ATM networks using fuzzy explicit rate marking (PERM) 

      Pitsillides, Andreas; Sekercioglu, Y. Ahmet; Ramamurthy, G. (1997)
      In this paper, we describe the fuzzy explicit rate marking (FERM) traffic flow control algorithm for a class of best effort service, known as available bit rate (ABR), proposed by the ATM Forum. FERM is an explicit rate ...
    • Conference Object  

      Fast backward predictive congestion notification for ATM networks with significant propagation delays 

      Hu, Xiying; Lambert, James F.; Pitsillides, Andreas (1995)
      A fast Backward Predictive Congestion Notification (BPCN) scheme for ATM networks is proposed, whose objective is to avoid cell loss and achieve high resource utilisation during high traffic demand. A dynamic adaptive model ...
    • Conference Object  

      Fuzzy logic congestion control in TCP/IP differentiated services networks for quality of service provisioning 

      Chrysostomou, Chrysostomos; Pitsillides, Andreas; Hadjipollas, George; Sekercioglu, Y. Ahmet; Polycarpou, Marios M. (2004)
      A two class Fuzzy Explicit Marking (FEM) controller was designed and used in Differentiated Services Networks for quality of service provisioning. The fuzzy control system is designed to regulate the queues of IP routers ...
    • Conference Object  

      Hierarchical approach for the bandwidth allocation, management and control in B-ISDN 

      Herzberg, Meir; Pitsillides, Andreas (Publ by IEEE, 1993)
      This paper adopts a hierarchical multilayer/ multilevel approach for the allocation, management and control of B-ISDN resources. This approach seems appropriate to present a vertical decomposition of control layers, having ...
    • Article  

      Insight and perspectives for Content Delivery Networks 

      Pallis, George C.; Vakali, Athena I. (2006)
      Content delivery over the Web has become an important element of improving web performance. Content delivery Networks (CDN) has been proposed to maximize bandwidth, improve accessibility, and maintain correctness through ...
    • Conference Object  

      Integrated control of connection admission, flow rate, and bandwidth for ATM based networks 

      Pitsillides, Andreas; Ioannou, Petros A.; Tipper, David (1996)
      We consider the combined control problem of connection admission, flow rate, and bandwidth allocation (capacity, service-rate) under nonstationary conditions. A fluid flow model in state variable form describes the time ...
    • Conference Object  

      Integrated control of connection admission, flow rate, and bandwidth for ATM based networksAAA 

      Pitsillides, Andreas; Ioannou, Petros A.; Tipper, David (1996)
      We consider the combined control problem of connection admission, flow rate, and bandwidth allocation (capacity, service-rate) under nonstationary conditions. A fluid flow model in state variable form describes the time ...
    • Conference Object  

      Integrated switching strategy for ABR traffic control in ATM networks 

      Pitsillides, Andreas; Ioannou, Petros A. (1997)
      In this paper we extend earlier results on combined control problem of connection admission, flow rate, and bandwidth allocation (capacity, service-rate) in ATM based networks under nonstationary conditions to the multiple ...
    • Conference Object  

      Integrated switching strategy for ABR traffic control in ATM networksAAA 

      Pitsillides, Andreas; Ioannou, Petros A. (1997)
      In this paper we extend earlier results on combined control problem of connection admission, flow rate, and bandwidth allocation (capacity, service-rate) in ATM based networks under nonstationary conditions to the multiple ...
    • Conference Object  

      Intelligent control techniques for efficient regulation of ABR queue length in ATM switches 

      Sekercioglu, Y. Ahmet; Pitsillides, Andreas (1997)
      Designing effective congestion control strategies for broadband networks is known to be difficult because of the variety of dynamic parameters involved such as link speeds, burstiness of the traffic, the distances between ...
    • Conference Object  

      A latency-based object placement approach in content distribution networks 

      Pallis, George C.; Vakali, Athena I.; Stamos, Kostas; Sidiropoulos, Antonis; Katsaros, Dimitrios S.; Manolopoulos, Yannis (2005)
      Content Distribution Networks (CDNs) are increasingly being used to disseminate data in today's Internet. The growing interest in CDNs is motivated by a common problem across disciplines: how does one reduce the load on ...