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arXiv · 1905.04956

Improved Delay Bound for a Service Curve Element with Known Transmission Rate

Ehsan Mohammadpour·Elena Stai·Jean-Yves Le Boudec
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Abstract

Network calculus is often used to prove delay bounds in deterministic networks, using arrival and service curves. We consider a FIFO system that offers a rate-latency service curve and where packet transmission occurs at line rate without pre-emption. The existing network calculus delay bounds take advantage of the service curve guarantee but not of the fact that transmission occurs at full line rate. In this letter, we provide a novel, improved delay bound which takes advantage of these two features. Contrary to existing bounds, ours is per-packet and depends on the packet length. We prove that it is tight.

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Ehsan Mohammadpour, Elena Stai, Jean-Yves Le Boudec. 2019-05-13. Improved Delay Bound for a Service Curve Element with Known Transmission Rate. https://doi.org/10.1109/lnet.2019.2927143

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