A.E.Eckberg, "B-ISDN/ATM Traffic and Congestion Control", IEEE Network Magazine, vol. 6, n. 5, September 1992  Home/Search   Document Not in Database   Summary   Related Articles   Check

....and policing) are available in CLASS. UPC, both preventive and repressive, can be implemented with any algorithm that allows an automatic control of one or more characteristics of the traffic: average bandwidth, peak bandwidth, burstiness, etc. Many UPC algorithms were proposed in the literature [18, 19, 20]; the UPC policy adopted in CLASS is the Generic Cell Rate Algorithm (GCRA) specified in the ITU T Recommendation I.371 [21] and ATM Forum ATM User Network Interface Specification Version 3.0 [22] as a traffic policing mechanism; the traffic shaping function was obtained with an adaptation of the ....

A.E.Eckberg, "B-ISDN/ATM Traffic and Congestion Control", IEEE Network Magazine, vol. 6, n. 5, September 1992

....sender [Lippman91] Hierarchical coding is also very important for the efficient use of high speed networks. The main issue for such network architectures (e.g. ATM) is the significant congestion control problems which can arise due to the statistical multiplexing of very high burstiness signals [Eckberg92, Trajkovic92]. A key property of any solution (that is not based on resource reservation at the peak rate of the sources) is the ability to shed load quickly without causing an avalanche of retransmissions of dropped traffic [Lucantoni90] With layered coding of continuous media, when network congestion arises ....

....to a reduction in service quality (which may be unnoticeable in many cases) Since continuous media will constitute the bulk of the network traffic, this technique can be very effective as a last resort for congestion control. Many of the proposed congestion control techniques rely on this feature [Lucantoni90, Eckberg92, Trajkovic92]. Many different proposals have been made for hierarchical coding of video (and continuous media in general) Karlsson89] presents a general approach to video transmission over packet switching networks, emphasizing the role of hierarchical coding. One of the most basic and conceptually simple ....

A. E. Eckberg, "B-ISDN/ATM Traffic and Congestion Control," IEEE Network Vol. 6(5), pp. 28-37 (September 1992).

....Congestion Control Layered coding can increase the efficiency of high speed networks. The main issue for high speed packet switching network architectures (e.g. ATM) is the significant congestion control problems that can arise due to the statistical multiplexing of very high burstiness signals [18]. A key property of any solution (that is not based on resource reservation at the peak rate of the sources) is the ability to shed load quickly without causing an avalanche of retransmissions of dropped traffic [19] With LC of CM, when network congestion arises it is possible to drop the less ....

A.E. Eckberg, "B-ISDN/ATM Traffic and Congestion Control," IEEE Network, Vol. 6(5), pp. 28-37, September 1992.

....latter technique to be effective, it should be combined with hierarchical coding (see below) and priority based discarding of excess load by the network. Various congestion control schemes based on these ideas are under consideration for Broadband ISDN using the Asynchronous Transfer Mode (ATM) [9]. Hierarchical coding techniques (also referred to as component, layered, or sub band coding) split continuous media signals into components of varying importance [15, 13] The aggregation of these components reconstructs the original data, but subsets of them can also provide various degrees of ....

A.E. Eckberg, "B-ISDN/ATM Traffic and Congestion Control," IEEE Network, Vol. 6, No. 5, pp. 28--37, September 1992.

....of real time traffic. During call admission, these properties assist the network in determining the resources to be allocated to a particular real time session. This characterization must be a balance of unambiguity, ease of specification, enforceability, and utility for reserving resources [5]. The traffic characteristics must be enforced both to protect other applications from the effects of a misbehaving client, and to distinguish between negotiated traffic (which should continue receiving guaranteed service) and excess traffic (which may not) Some real time sources have inherent ....

A. E. Eckberg, "B-isdn/atm traffic and congestion control," IEEE Network, vol. 6, pp. 28--37, Sept. 1992.

....queue management adapts superbly to sharp changes in cell arrival rates and maximum burstiness of bursty traffic sources, yielding lower cell discard rates, high throughput of cells through the network, and lower cell blocking rates. 2 1. Introduction Asynchronous transfer mode (ATM) networks [1] refer to high performance communications networks that utilize the asynchronous transfer mode as the information transport mechanism. ATM provides a flexible means for (i) supporting a continuum of transport rates, ranging from low bit rate to high bit rate traffic, ii) asynchronous traffic ....

A.E. Eckberg, "B-ISDN/ATM Traffic and Congestion Control," IEEE Network, September 1992, pp. 28-37.

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A. E. Eckberg, "BISDN/ATM traffic and congestion control," IEEE Network, vol. 6, pp. 28--37, Sept. 1992

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