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Deterministic Network Calculus. DNC history Queueing Theory, Agner Krarup Erlang, 1909 Queueing Networks, James R. Jackson, 1957 Scheduling Theory, Liu.

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Presentation on theme: "Deterministic Network Calculus. DNC history Queueing Theory, Agner Krarup Erlang, 1909 Queueing Networks, James R. Jackson, 1957 Scheduling Theory, Liu."— Presentation transcript:

1 Deterministic Network Calculus

2 DNC history Queueing Theory, Agner Krarup Erlang, 1909 Queueing Networks, James R. Jackson, 1957 Scheduling Theory, Liu & Layland, 1972 Network Calculus, Rene Cruz, 1991, J. Y. Le Boudec

3 DNC motivation Queueing Networks predict backlogs and waiting in networks of servers and buffers (production, computer networks, traffic) QN theory is probabilistic – not suited for real time analysis Scheduling theory gives worst case (non-deterministic) results for single queues under restricting assumptions Deterministic Network Calculus extends scheduling theory to a non deterministic theory for networks.

4 Cirquit analysis

5 Concatenation of Network Elements

6 Converging Flows

7 Feedback

8 Definition and Range Spaces

9

10 The Playout Buffer

11

12 Arrival Curves

13

14 Spacing and Staircases

15 Left Continuity

16 An Equivalence

17 The Leaky Bucket in Words

18 Leaky Bucket in Graphics

19 Nice to know about Leaky Buckets

20 Some DN-Calculus in Play Henrik should prove this on the blackboard

21 The Generic Cell Rate Algorithm

22 GCRA facts

23 Leaky Buckets and GCRAs

24 Good Functions

25 Subadditivity

26 Sufficiency of Subadditive Arrivals

27 Minimum Arrival Curves

28 Minimum Arrival Curves (example)


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