A CSMA/CD compatible MAC for real-time transmissions based on varying collision intervals

Sharon, Oran; Spratt, M.

doi:10.1109/infcom.1998.662941

Cited by 2 publications

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, studies such as [8,9] focused on the different approaches that can be used to provide real-time guarantees using the Ethernet and network communication protocols in control networks and sensor/actuator buses, respectively. In parallel to the modifications of Ethernet technology, significant research such as [10,11] and [12] has been carried out on the topic of Ethernet temporal behavior, which is directly related with the real-time implementation of Ethernet technology in industrial networks. Related to industrial Ethernet technology, recent studies such as [13,14] focused on the different perspectives about the usage of Modbus protocol in industrial network systems.…”

Section: Introductionmentioning

confidence: 99%

Ethernet-based automation network systems mobile laboratory: a case study in nonlinear control of water tank system

Ucun¹,

Akbati²,

Cansever³

2015

Turk J Elec Eng & Comp Sci

View full text Add to dashboard Cite

This paper studies an automation network configuration for the concept of a mobile laboratory establishment.The study also covers the design and implementation of a nonlinear controller for the water tank system as a case study.The design and establishment of the mobile laboratory is involved in CoNeT (Cooperative Network Training), a European Union-funded project that aims to design mobile laboratories for different uses in industrial network systems to be used for both application-oriented research and training. In addition to automation network communication and nonlinear controller design, this study also includes Modbus communication analysis and Ethernet traffic monitoring in an industrial network. Detailed analyses about the Modbus/TCP communication, such as the calculation of I/O module response time for a requested query and the update rate of each task, are also carried out by the help of the package capturing software and mirroring property of manageable switches used in the configuration of the mobile laboratory, and the results are given in tables at the end of the paper. Moreover, the real-time results of the controlled water tank system that is introduced as a case study are given by the help of graphics and tables in order to illustrate the efficiency of the implemented controller and network configuration. The obtained results illustrate that the designed nonlinear controller achieves a good tracking performance for the closed-loop system where the water level of the tank tracks the given reference signal. As the obtained results are significant for academic research, the given application-oriented examples and results are also very useful in the concept of industrial training carried out by using the proposed mobile laboratory.

show abstract

Section: Introductionmentioning

confidence: 99%

Ethernet-based automation network systems mobile laboratory: a case study in nonlinear control of water tank system

Ucun¹,

Akbati²,

Cansever³

2015

Turk J Elec Eng & Comp Sci

View full text Add to dashboard Cite

show abstract

EQuB-Ethernet quality of service using black bursts

Sobrinho

Krishnakumar²

Proceedings 23rd Annual Conference on Local Computer Networks. LCN'98 (Cat. No.98TB100260)

View full text Add to dashboard Cite

EQuB is an overlay mechanism to Ethernet's MAC protocol that provides QoS guarantees to real-time applications. In its basic form, EQuB relies on the sensing and collision detection abilities of standard network interface cards and, in addition, requires only that those cards be capable of sending jam signals-so called black bursts-of pre-specified durations. EQuB gives access priority to realtime traffic, provides round-robin service among real-time hosts and guarantees a small, bounded delay to real-time packets. We also discuss enhancements to the basic EQuB mechanism that improve its performance.Simulation results are presented that assess the performance of 10 and 100BASE-T Ethernet LANs with a mixed population of data and real-time hosts. We conclude that, in spite of the priority attained by real-time traffic, data packet delays are not significantly affected as data load is traded for real-time load, and this is because EQuB dispatches packets to the channel much more efficiently than Ethernet's MAC protocol.

show abstract

A CSMA/CD compatible MAC for real-time transmissions based on varying collision intervals

Cited by 2 publications

References 15 publications

Ethernet-based automation network systems mobile laboratory: a case study in nonlinear control of water tank system

Ethernet-based automation network systems mobile laboratory: a case study in nonlinear control of water tank system

EQuB-Ethernet quality of service using black bursts

Contact Info

Product

Resources

About