Output rate-controlled scheduling policy: End-to-end delay bounds calculation

Masaki Hanada, Hidenori Nakazato

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Recently many packet scheduling algorithms based on Generalized Processor Sharing (GPS) and Earliest Deadline First (EDF) have been proposed in order to guarantee deterministic or statistical delay bounds. GPS provides a minimum guaranteed service rate for each session and tight end-to-end delay bounds for leaky bucket constrained sessions. However, the delay bounds are unnecessarily large because each session is served according to its associated constant weight until the session buffer is empty. EDF is the optimal scheduling algorithm in terms of schedulable region in a single-node network. However, using EDF to provide end-to-end delay bounds is problematic because the traffic will be distorted after traffic aggregation in a multi-node network. In this paper, we present a scheduling policy called Output Rate-Controlled Generalized Processor Sharing (ORC-GPS) in order to guarantee deterministic delay bounds. ORC-GPS is a rate-based scheduling like GPS and controls the service rate to lower the delay bounds for leaky bucket constrained sessions. We compare ORC-GPS with GPS and EDF in terms of delay bounds.

Original languageEnglish
Article number4195413
Pages (from-to)1370-1375
Number of pages6
JournalInternational Conference on Advanced Communication Technology, ICACT
Volume2
DOIs
Publication statusPublished - 2007 Jul 3
Event9th International Conference on Advanced Communication Technology, ICACT 2007 - Gangwon-Do, Korea, Republic of
Duration: 2007 Feb 122007 Feb 14

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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