Institute for Telecommunication Sciences
the research laboratory of the National Telecommunications and Information Administration

Lewis E. Vogler

Abstract: Fritchman's single–error–state (SES) model for describing the error statistics of digital communication channels is modified to allow the prediction of error statistics as a function of the bit error rate (BER). From the data samples of a measurement program, cumulative distributions (CD's) of the statistics are obtained, and simple analytic relationships are derived between error statistics and the BER at any CD level. A computer program based on the extended SES model has been written that evaluates the block error rate, burst error rate, error gap distribution, and counting distribution for any desired BER. Comparisons are shown of model predictions and measured data taken over a switched telecommunications network.

Keywords: bit error statistics; error statistics modeling; digital communication channels


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