6533b827fe1ef96bd12871e8
RESEARCH PRODUCT
AQM generalized nyquist stability in multiple bottleneck networks
Laura GiarreDiego Di BernardoGiovanni NegliaDario Bausosubject
RouterBasis (linear algebra)Communication networks; Control theory; Stability analysis;Control theoryNyquist stability criterionStability (learning theory)Active queue managementTelecommunications networkBottleneckMathematicsdescription
Abstract The influence of multiple bottlenecks on the stability of Active Queue Management (AQM) controllers, usually configured on a single bottleneck basis is discussed. We consider a network scenario where RED is configured at each router according to previously developed control theoretic techniques. These configuration rules assure stability in a single bottleneck scenario. We show that instability may arise when two links become congested. We justify this result through a multiple bottleneck model using the Generalized Nyquist stability criterion.
year | journal | country | edition | language |
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2005-01-01 |