Karl J. Astrom, "Oscillations in Systems with Relay Feedback," in Adaptive control, filtering and signal processing, IMA Volume sin Mathematics and its Applications, 1995, vol. 74, pp. 1--25.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....such an on off mechanism 3 also referred to as relay control in the feedback literature. sR e s P d q C(s) d p 0 Fig. 6. Block diagram of a linearized AQM control system leads to oscillations (limit cycles) that can exhibit complex and chaotic behavior; e.g. see [14]. Such oscillations may be undesirable in queue management, and RED was introduced to stabilize them. A transfer function model for RED is: 7) where F 45200 H ) is the queue averaging parameter and H is the sample time; see [9] In ....

Karl J. Astrom, "Oscillations in Systems with Relay Feedback," in Adaptive control, filtering and signal processing, IMA Volume sin Mathematics and its Applications, 1995, vol. 74, pp. 1--25.

....or RED. Tail drop is an on off control strategy. In terms of our set up in Figure 6, tail drop amounts to the on off action p 2 f0; 1g. It is known in control theory that such an on off mechanism 4 leads to oscillations (limit cycles) that can exhibit complex and chaotic behavior; e.g. see [11]. Such oscillations may be undesirable in queue management, and RED was introduced to stabilize them. 4 also referred to as relay control in the feedback literature. 12 A transfer function model for RED is: C(s) C red (s) L red s=K 1 ; 6) where L red = p max max th min th ; K = ....

K. J. Astrom, "Oscillations in Systems with Relay feedback," in Adaptive control, filtering and signal processing, IMA Volume sin Mathematics and its Applications, vol. 74, pp. 1--25, 1995.

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