Searching for authors named "Ioannis Stavrakakis" – sorted by Relevance.
71 documents found, showing 1 through 10.
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Evaluation of ABR Traffic Management Under Various System Time Scales
- …In this paper, the effects of various time scales on the management of ABR (Available Bit Rate) traffic using feedback based control is studied. Since delay tolerable, the ABR applications can be allocated the remaining resources after CBR (Constant Bit Rate) and VBR (Variable Bit Rate) applications…
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Adaptive Rate Control in High-Speed Networks: Performance Issues
- …It is well established that increased network transmission speed reduces the effectiveness of feedback-based adaptive rate control mechanisms, due to the increased bandwidth propagation delay product. In this environment, differences in the propagation delay...…
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Achievable Dropping Rates under Variable Frame TDMA Schemes in the Presence of Deadlines and Overhead
- …The objective of this paper is to determine the minimum system dropping rate induced by variable frame TDMA schemes supporting time-constrained applications with common maximum cell delay tolerance. Expressions are derived for the induced (optimal) system dropping rate and the maximum number of user…
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Multiplexing Generalized Periodic Markovian Sources with an Application to the Study of VBR Video
- …This paper presents a stochastic traffic model which is capable of capturing the time-scale dynamics associated with the potentially large disparity between source and output-link speeds in packet networks such as ATM. The model is applied to the study of Variable Bit Rate (VBR) video sources in whi…
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Study of Impact of Network and Source Time Scales on Feedback Based Congestion Control
- …In this study, the problem of multiplexing VBR and ABR traffic is considered. VBR is uncontrollable, while ABR is provided the remaining service capacity in a controllable fashion. While in a given state, the VBR source is supposed to transmit at a fixed rate; the VBR time scale is then defined in t…
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Open- and Closed-Loop Traffic Regulation Schemes for ATM Networks
- …In this paper, some new traffic regulation schemes are defined in terms of a relief-spacing (or spacing of the allowance for cell delivery to the network) function. This function may depend only on some user-state, thus defining the class of open-loop relief-spacing traffic regulators; or it may dep…
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An Efficient, Deadline Credit-based Transport Scheme for Prerecorded, Semi-Soft Continuous Media Applications
- …In this paper an efficient scheme is proposed based on the introduced Deadline Credit-based (DC) policy. This scheme is appropriate for any prerecorded media but particularly relevant for prerecorded, semi-soft Continuous Media (CM) applications. Semi-soft are applications with very small initial de…
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Energy Considerations for Topology-Unaware TDMA MAC Protocols
- …Since the energy budget of mobile nodes is limited, the performance of a networking protocol for such users should be evaluated in terms of its energy e#ciency, in addition to the more traditional metrics such as throughput. In this paper, two topology-unaware MAC protocols - in which the scheduling…
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Achievable QoS in a Shared Wireless Channel
- …In this work, call admission and transmission scheduling policies are studied for a TDMA system servicing Variable Bit Rate (VBR) applications with distinct QoS requirements and traffic characteristics. In this environment, packets which experience excess delays are dropped (due to delay violations)…
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Delay Bounds on a Queueing System with Consistent Priorities
- …A discrete-time queueing system operating under a two-level, consistent priority service policy is studied in this paper. The consistency of the policy guarantees that no low priority customer will be served before a previously (or simultaneously) arrived high priority one. Unlike the well known hea…
- Cited by 6 (4 self) – Add To MetaCart
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