Apparatus for monitoring state of traffic in telecommunication n

Details Apparatus for monitoring state of traffic in telecommunication n Apparatus for monitoring state of traffic in telecommunication n

1998-02-27

2000-11-14

Vu, Huy D.

Multiplex communications

Diagnostic testing

Determination of communication parameters

379139, H04J 314

Patent

active

061479748

ABSTRACT:
An apparatus for monitoring state of traffic in a telecommunication network by calculating ABR based upon BID and ANS per unit time in the network. This apparatus includes a model generation unit for receiving sampled data for generating models, the sampled data being constituted by a set of pairs of BID and ANS per unit time when the network is normal, and for calculating an average connection ratio when the network is normal based upon the sampled data, a calculation unit for calculating log-likelihood at a single point under hypothesizes of normality and degradation of the network based upon time series BID and ANS and upon the average connection ratio calculated by the model generation unit, and a detection unit for detecting whether state of traffic in the network is normal or degraded based upon time series log-likelihood of under hypothesizes of normality and degradation calculated by the calculation unit.

REFERENCES:
patent: 5459777 (1995-10-01), Bassa et al.
patent: 5919898 (1999-06-01), Bassa et al.
"Sequential Multiple Hypothesis Test for Fault Detection in Reactor Noise Signals", Glockler, 8th Power Plant Dynamics, Control and Testing Symposium, May 27-29, 1992, pp. 1--14.

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