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Published byIsabella Richards Modified over 9 years ago
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Deterministic Network Calculus
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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
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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.
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Cirquit analysis
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Concatenation of Network Elements
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Converging Flows
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Feedback
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Definition and Range Spaces
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The Playout Buffer
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Arrival Curves
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Spacing and Staircases
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Left Continuity
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An Equivalence
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The Leaky Bucket in Words
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Leaky Bucket in Graphics
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Nice to know about Leaky Buckets
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Some DN-Calculus in Play Henrik should prove this on the blackboard
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The Generic Cell Rate Algorithm
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GCRA facts
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Leaky Buckets and GCRAs
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Good Functions
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Subadditivity
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Sufficiency of Subadditive Arrivals
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Minimum Arrival Curves
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Minimum Arrival Curves (example)
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