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A simple approach for minimal jitter in Ethernet for real-time control communication

  • University of Bristol
  • Bristol Robotics Laboratory

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

The aim of this paper is to develop an approach for cheap and deterministic control communication using Ethernet. A half-duplex Ethernet network populated with a small/medium number of Media Access Controllers (MACs) is used for timed real-time communication. Data packages are sent at well defined times to avoid collisions. Collisions mainly occur due to jitter of the transmitter system, so that arbitration (similar to CANopen) is necessary. The Binary Exponential Backoff (BEB) scheme is used. This paper analyzes and investigates how the backoff time affects the performance of the Carrier Sense Multiple Access protocol with Collision Detection (CSMA/CD) in a basic Media Access Controller (MAC), in terms of data arrival characteristics, i.e jitter and delay. We propose to assign different minimal backoff times for each of the CSMA/CD controller units to minimize packet collisions. Simulated tests show the advantage of our approach over a standard CSMA/CD setting.

Original languageEnglish
Title of host publication14th International Conference on Advanced Communication Technology
Subtitle of host publicationSmart Society Innovation through Mobile Internet, ICACT 2012
Pages710-715
Number of pages6
StatePublished - 2012
Externally publishedYes
Event14th International Conference on Advanced Communication Technology, ICACT 2012 - PyeongChang, Korea, Republic of
Duration: 19 Feb 201222 Feb 2012

Publication series

NameInternational Conference on Advanced Communication Technology, ICACT
ISSN (Print)1738-9445

Conference

Conference14th International Conference on Advanced Communication Technology, ICACT 2012
Country/TerritoryKorea, Republic of
CityPyeongChang
Period19/02/1222/02/12

Keywords

  • CSMA/CD
  • Ethernet
  • backoff time and network model

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