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Title:
ENFORCEABLE AND EFFICIENT SERVICE PROVISIONING
Document Type and Number:
WIPO Patent Application WO2002003628
Kind Code:
A3
Abstract:
A network element is deployed in a network of interconnected elements. The network element includes a shared buffer multiplexer connected to a link, a set of regulators connected to the shared buffer multiplexer, and an admission control unit communicatively coupled to the set of regulators and the shared buffer multiplexer. Each of the set of regulators has an input traffic flow. Each traffic flow has a varying flow rate. In order to control admission of the traffic flow to the link in the network element, the admission control unit evaluates the traffic flowing into each regulator. For each traffic flow, the admission control unit receives an envelope of the flow input to the regulator. The admission control unit maximizes the entropy of a distribution of the rate of flow over all time scales. The admission control unit determines the maximum-entropy distribution for the flow using information derived from the traffic envelope, including bounds of the mean rate, the minimum rate, and the maximum rate. The admission control unit approximates the rate variance of the maximum-entropy distribution for a given maximum rate. The admission control unit makes an admission control decision based on the approximated rate variance for the given maximum rate. If the flow is admitted, the flow is set up and transmission begins.

Inventors:
WU TAO
KNIGHTLY EDWARD
DIXIT SUDHIR
Application Number:
PCT/US2001/020034
Publication Date:
April 04, 2002
Filing Date:
June 22, 2001
Export Citation:
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Assignee:
NOKIA INC (US)
International Classes:
H04L12/56; (IPC1-7): H04L12/56
Domestic Patent References:
WO1998037708A21998-08-27
Other References:
WU T ET AL: "Enforceable and efficient service provisioning", COMPUTER COMMUNICATIONS, ELSEVIER SCIENCE PUBLISHERS BV, AMSTERDAM, NL, vol. 23, no. 14-15, 30 August 2000 (2000-08-30), pages 1377 - 1388, XP004209387, ISSN: 0140-3664
SKLIROS A: "A CONNECTION ADMISSION CONTROL ALGORITHM FOR ATM TRAFFIC DISTORTED BY CELL DELAY VARIATION", FUNDAMENTAL ROLE OF TELETRAFFIC IN THE EVOLUTION OF TELECOMMUNICATIONSNETWORKS. PROCEEDINGS OF THE 14TH. INTERNATIONAL TELETRAFFIC CONGRESS - ITC 14, JUAN-LEES-PINS, JUNE 6 - 10, 1994, TELETRAFFIC SCIENCE AND ENGINEERING, AMSTERDAM, ELSEVIER, NL, vol. 1B, 6 June 1994 (1994-06-06), pages 1385 - 1394, XP000593384, ISBN: 0-444-82031-0
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