Improved Regulating Scheduler for Network Delay Guarantee 


Vol. 44,  No. 6, pp. 1105-1112, Jun.  2019
10.7840/kics.2019.44.6.1105


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  Abstract

Numerous applications require strict bound on the end-to-end network delay, which is ranged from a few msec to a few seconds. The class-based systems adopted in the actual deployments, however, cannot provides a bounded delay in networks with cycle, since the maximum burst grows infinitely along the cycled path. Regulators implemented next to a scheduler, which limit the maximum burst are adopted as a viable solution. Furthermore, non-work conserving scheduler that also performs regulating function, called Regulating Scheduler (RSC), is suggested. RSC guarantees a few millisecond’s end-to-end delay when applied to input-port based queues. The statistical performance of non-work conserving RSC is inevitably worse when compared to work conserving schedulers. This paper proposes an improved RSC. It is shown by simulation the improved RSC gives a closer statistical performance to work-conserving scheduler, while still guarantees the maximum delay just like the RSC.

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  Cite this article

[IEEE Style]

J. Joung and J. Kwon, "Improved Regulating Scheduler for Network Delay Guarantee," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 6, pp. 1105-1112, 2019. DOI: 10.7840/kics.2019.44.6.1105.

[ACM Style]

Jinoo Joung and Juhyeok Kwon. 2019. Improved Regulating Scheduler for Network Delay Guarantee. The Journal of Korean Institute of Communications and Information Sciences, 44, 6, (2019), 1105-1112. DOI: 10.7840/kics.2019.44.6.1105.

[KICS Style]

Jinoo Joung and Juhyeok Kwon, "Improved Regulating Scheduler for Network Delay Guarantee," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 6, pp. 1105-1112, 6. 2019. (https://doi.org/10.7840/kics.2019.44.6.1105)