Performance Analysis of Timer Assignment and Utilization of the IEEE 802.4 Token Bus for Real Time Processing


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 1, No. 3, pp. 357-366, Sep. 1994
10.3745/KIPSTE.1994.1.3.357,   PDF Download:

Abstract

The IEEE 802.4 token bus has been widely accepted as the standard for factory local area networks. The priority option of the 802.4 standard supports multiple classes of traffic by using a set of timers to control information exchange. The performance of the 802.4 priority mechanism in industrial real time control is examined. A timer assignment technique is presented for such applications. The timers are set to satisfy the worst case access delay requirements of real time control applications. Other applications that are not time constrainted can be supported simultaneously. In fact, under certain conditions, such applications can also be guaranteed a minimum bandwidth allocation. Simulation results are used to evaluate the timer assignment and utilization.


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Cite this article
[IEEE Style]
K. J. Ho, L. M. Nam, R. S. Burm, "Performance Analysis of Timer Assignment and Utilization of the IEEE 802.4 Token Bus for Real Time Processing," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 1, no. 3, pp. 357-366, 1994. DOI: 10.3745/KIPSTE.1994.1.3.357.

[ACM Style]
Kim Jeong Ho, Lee Min Nam, and Rhee Sang Burm. 1994. Performance Analysis of Timer Assignment and Utilization of the IEEE 802.4 Token Bus for Real Time Processing. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 1, 3, (1994), 357-366. DOI: 10.3745/KIPSTE.1994.1.3.357.