ITU E.501:1997
ITU E.501:1997 Estimation Of Traffic Offered In The Network Covers estimation methods for traffic offered to a circuit- switched network. Covers procedures for estimation of the traffic offered to a circuit group measurements.
Table of Contents
1Introduction2Scope
3References
4Only-pathcircuitgroup
4.1Nosignificantcongestion
4.2Significantcongestion
5High-usage/finalcircuitgrouparrangement
5.1High-usagegroupwithnosignificantcongestion
onthefinalgroup
5.2High-usagegroupwithsignificantcongestionon
thefinalgroup
6Origin-destinationequivalenttrafficoffered
6.1Determinationoforigin-destinationtrafficoffered
whenorigin-destinationtrafficmeasurementson
thetotalityofcallattemptsareavailable
6.2Determinationoforigin-destinationtrafficoffered
whenorigin-destinationtrafficmeasurementsonly
onasamplingbasisareavailable
6.3Determinationoforigin-destinationtrafficoffered
whenonlycircuit-groupbasedmeasurementsoftraffic
intensityareavailable
7History
8Bibliography
AnnexAAsimplifiedmodelfortheformulapresentedin4.2
AnnexBEquivalenttrafficoffered
AnnexCMethodsfordeterminationoforigin-destination
trafficofferedwhenonlythemeasurementsoftraffic
intensityoncircuitgroupbasisareavailable
C.1Notation,derivationandsolutionofFormula6-1
in6.3
C.2Thepseudo-inverse
C.3Theiterativealgorithm
Bibliography
AnnexDExamplesofapplicationofthemethodsdescribedin
AnnexC
D.1Example1
D.2Example2
AnnexEAsampleperformanceevaluationofthepseudo-inverse
andoftheiterativealgorithm