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Handbook of Real-Time and Embedded Systems.pdf

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viii<br />

Contents<br />

4.5 Hybrid Rate-Based Scheduling ............................................................................................ 4-12<br />

4.6 Summary <strong>and</strong> Conclusions .................................................................................................. 4-13<br />

5 Compositional <strong>Real</strong>-<strong>Time</strong> Schedulability Analysis<br />

Insik Shin <strong>and</strong> Insup Lee .................................................................................................................... 5-1<br />

5.1 Introduction .......................................................................................................................... 5-1<br />

5.2 Compositional <strong>Real</strong>-<strong>Time</strong> Scheduling Framework ............................................................. 5-3<br />

5.3 Workload Models .................................................................................................................. 5-6<br />

5.4 Resource Models ................................................................................................................... 5-7<br />

5.5 Schedulability Analysis ......................................................................................................... 5-9<br />

5.6 Schedulable Workload Utilization Bounds .......................................................................... 5-12<br />

5.7 Extension ............................................................................................................................... 5-16<br />

5.8 Conclusions ........................................................................................................................... 5-18<br />

6 Power-Aware Resource Management Techniques for Low-Power<br />

<strong>Embedded</strong> <strong>Systems</strong> Jihong Kim <strong>and</strong> Tajana Simunic Rosing .............................................. 6-1<br />

6.1 Introduction .......................................................................................................................... 6-1<br />

6.2 Dynamic Voltage Scaling ...................................................................................................... 6-2<br />

6.3 Dynamic Power Management .............................................................................................. 6-8<br />

6.4 Conclusions ........................................................................................................................... 6-12<br />

7 Imprecise Computation Model: Total Weighted Error <strong>and</strong> Maximum<br />

Weighted Error Joseph Y-T. Leung ........................................................................................ 7-1<br />

7.1 Introduction .......................................................................................................................... 7-1<br />

7.2 Total Weighted Error ............................................................................................................ 7-3<br />

7.3 Maximum Weighted Error ................................................................................................... 7-9<br />

7.4 Concluding Remarks ............................................................................................................ 7-13<br />

8 Imprecise Computation Model: Bicriteria <strong>and</strong> Other Related Problems<br />

Joseph Y-T. Leung ............................................................................................................................... 8-1<br />

8.1 Introduction .......................................................................................................................... 8-1<br />

8.2 Total w-Weighted Error with Constraints ............................................................................ 8-2<br />

8.3 Maximum w ′ -Weighted Error with Constraints ................................................................. 8-3<br />

8.4 0/1-Constraints ..................................................................................................................... 8-6<br />

8.5 Conclusions ........................................................................................................................... 8-10<br />

9 Stochastic Analysis <strong>of</strong> Priority-Driven Periodic <strong>Real</strong>-<strong>Time</strong> <strong>Systems</strong><br />

José Luis Díaz, Kanghee Kim, José María López,<br />

Lucia Lo Bello, Daniel F. García, Chang-Gun Lee,<br />

Sang Lyul Min <strong>and</strong> Orazio Mirabella ................................................................................................. 9-1<br />

9.1 Introduction .......................................................................................................................... 9-1<br />

9.2 Related Work ......................................................................................................................... 9-2<br />

9.3 System Model ........................................................................................................................ 9-3<br />

9.4 Stochastic Analysis Framework ............................................................................................ 9-4<br />

9.5 Steady-State Backlog Analysis .............................................................................................. 9-12<br />

9.6 Computational Complexity ................................................................................................. 9-15<br />

9.7 Experimental Results ............................................................................................................ 9-17<br />

9.8 Conclusions <strong>and</strong> Future Work ............................................................................................. 9-22

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