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Adaptive fuzzy control scheduling of window-constrained real-time systems

Published: 18 January 2005 Publication History

Abstract

DWCS (Dynamic window-constrained scheduling) algorithm has good performance when the DWCS scheduler is not overloaded. But when the scheduler is overloaded, many violations will be produced and they are not uniformly distributed. In this paper, we present an adaptive fuzzy control scheduling based on DWCS algorithm. The improved algorithm can have a rectangular distribution of violation ratios among all real-time tasks when the system is overloaded. To evaluate the effectiveness of the improved algorithm, we have done extensive simulation studies. The simulation results show that the new algorithm is superior to the old algorithm.

References

[1]
Richard West and Karsten Schwan, "Dynamic Window-Constrained Scheduling for Multimedia Applications," In 6th Proceedings of the IEEE International Conference on Multimedia Computing and Systems (ICMCS), Florence, Italy: IEEE, pp. 87--91, 1999.
[2]
C. L. Liu and J. W. Layland, "Scheduling Algorithms for Multiprogramming in a Hard Real-Time Environment, "Journal of the ACM, Vol 20, No 1, pp. 40--61, 1973.
[3]
M. Hamdaoui and P. Ramanathan, "Evaluating Dynamic Failure Probability for Streams with (m, k)-Firm Dead-lines, "IEEE Transactions on Computers, Vol 45, No 12, pp. 1325--1357, 1997
[4]
Richard West and Christian Poellabauer, "Analysis of a Window-Constrained Scheduler for Real-Time and Best-Effort Packet Streams, "In Proceedings of the 21st IEEE Real-Time Systems Symposium (RTSS), Orlando: IEEE, pp. 239--248, 2000.
[5]
Huai Xiao-Yong, Zou Yong and Li Ming-Shu, "Adaptive Fuzzy Control Scheduling of Hybrid Real-time systems, "In Proceedings of the First International Conference on Machine Learning and Cybernetics, Beijing: IEEE, pp. 810--815, November 2002.

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cover image ACM Conferences
ASP-DAC '05: Proceedings of the 2005 Asia and South Pacific Design Automation Conference
January 2005
1495 pages
ISBN:0780387376
DOI:10.1145/1120725
  • General Chair:
  • Ting-Ao Tang
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Association for Computing Machinery

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Publication History

Published: 18 January 2005

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