ATM cell scheduling with queue length-based priority scheme

Young Keun Park, Gyungho Lee

Research output: Contribution to conferencePaper

Abstract

The Asynchronous Transfer Mode (ATM) is the choice of transport mode for B-ISDN. In this paper, we propose a window-based ATM cell scheduling scheme using a neural network to achieve higher throughput for nonblocking ATM switches. In a nonblocking switch with input queues, significant loss of throughput can occur due to head-of-line blocking when FIFO queueing is employed. To resolve this problem, we propose an optimal input bypass queueing method which maximizes switch throughput. We also employ a queue length based priority scheme to reduce cell delay variations and cell loss probabilities. With the employed priority scheme, the variance of delay is also significantly reduced under nonuniform traffic, resulting in lower cell loss rates at a given buffer size. Due to higher switch throughput achieved with our cell scheduling, the cell loss probabilities and the buffer sizes necessary to guarantee a given cell loss rate become even smaller than those with output queueing that has been known to provide better performance than input queueing.

Original languageEnglish
Pages671-680
Number of pages10
Publication statusPublished - 1995
Externally publishedYes
EventProceedings of the 1995 4th International Conference on Computer Communications and Networks, ICCCN'95 - Las Vegas, NV, USA
Duration: 1995 Sep 201995 Sep 23

Other

OtherProceedings of the 1995 4th International Conference on Computer Communications and Networks, ICCCN'95
CityLas Vegas, NV, USA
Period95/9/2095/9/23

ASJC Scopus subject areas

  • Computer Science(all)

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  • Cite this

    Park, Y. K., & Lee, G. (1995). ATM cell scheduling with queue length-based priority scheme. 671-680. Paper presented at Proceedings of the 1995 4th International Conference on Computer Communications and Networks, ICCCN'95, Las Vegas, NV, USA, .