Integrated Rate and Credit Feedback Control for ABR Service in ATM Networks

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Integrated Rate and Credit Feedback Control for ABR Service in ATM Networks (1997)

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by Xi Zhang , Kang G. Shin , Qin Zheng

Venue:	IN PROC. OF IEEE INFOCOM
Citations:	4 - 3 self

BibTeX

@INPROCEEDINGS{Zhang97integratedrate,
    author = {Xi Zhang and Kang G. Shin and Qin Zheng},
    title = {Integrated Rate and Credit Feedback Control for ABR Service in ATM Networks},
    booktitle = {IN PROC. OF IEEE INFOCOM},
    year = {1997},
    pages = {1297--1305},
    publisher = {}
}

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Abstract

We propose a flow-control scheme that combines the merits of credit- and rate-based flow-control schemes by applying direct control over both bandwidth and buffer resources. The goal of the proposed scheme is to design an optimal rate-control policy for a given finite buffer capacity that maximizes average throughput and bounds end-to-end delay. By applying higher-order rate control, the proposed scheme not only makes the rate process converge to the neighborhood of link bandwidth, but also confines the queue-length fluctuation to a regime bounded by buffer capacity (thus guaranteeing lossless transmission). Using the fluid approximation method, we model the proposed flow-control scheme and study the system dynamic behavior for ABR (Available Bit Rate) service under the most stressful traffic condition. We derive the expressions for queue build-ups and average throughput in both transient and equilibrium states. The analytical results have shown the proposed scheme to be stable and efficient in that the source rate and bottleneck queue length rapidly converge to the designated operating region. Also, presented are examples showing that the proposed scheme outperforms the other existing schemes.

Keyphrases

atm network abr service credit feedback control average throughput flow-control scheme rate-based flow-control scheme source rate direct control system dynamic behavior stressful traffic condition end-to-end delay equilibrium state queue-length fluctuation optimal rate-control policy lossless transmission operating region buffer capacity available bit rate fluid approximation method link bandwidth bottleneck queue length higher-order rate control finite buffer capacity rate process converge queue build-ups analytical result

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