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Hard Real Time guarantees using Switched Ethernet and distributed scheduling (EDF)
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE).
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE).
2006 (English)Independent thesis Advanced level (degree of Master (One Year))Student thesis
Abstract [en]

Ethernet technology is being accepted by industrial community due to its open standardization

and low cost. To meet the requirements of industrial applications, a switched Ethernet

network with hard real time guarantees using relative deadlines is presented as a first step to

verify the functionality. The goal of the project was primarily to implement a real-time

switched Ethernet with EDF (Earliest Deadline First) scheduling algorithm.

In this project, the function simulations of real-time switched Ethernet with distributed control

software have been implemented, by using a standard switch with priority-queues and the

distributed software, as well as EDF-scheduled TDMA (Time Division Medium Access). The

network topology is the star type. There is no extra hardware added into the switch and the

nodes. All functions are implemented by software and the setting in the switch.

The project focuses on hard real-time service guarantees but soft real-time traffic and non

real-time traffic, as well as real time administration are also taken into the consideration.

Our simulations show that 100 percent of the network usage could be scheduled and the result

of deterministic real-time properties of the system are achieved as expected.

Place, publisher, year, edition, pages
Högskolan i Halmstad/Sektionen för Informationsvetenskap, Data- och Elektroteknik (IDE) , 2006. , p. 476252 bytes
Keywords [en]
Ethernet technology, Real-time switched Ethernet, Distributed scheduling
Identifiers
URN: urn:nbn:se:hh:diva-250Local ID: 2082/545OAI: oai:DiVA.org:hh-250DiVA, id: diva2:237428
Uppsok
Technology
Available from: 2006-11-24 Created: 2006-11-24 Last updated: 2007-01-08

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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Output format
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