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COMBINED SIMULATION-ANALYTICAL METHOD FOR ESTIMATION OF ERROR PROBABILITY IN THE DIGITAL TRANSMISSION SYSTEM WITH MULTITHRESHOLD DECODER

D. S. Demidov, post-graduate student, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
G. V. Ovechkin, PhD (technical sciences), professor, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.

The aim of this work is the performance of multithreshold decoder (MTD) for self-orthogonal codes estimation for low decoder error probability. The problem is relevant because of large volumes of the experiment and huge time-consuming required for estimation of MTD bit-error rate via computer simulation in case with decoder error probabilities of the order 10-12 and lower. This article offers and describes combined imitation–analytical method for estimation of multithreshold decoder bit-error rate. This method provides estimation of bit-error rate for goal signal to noise ratio based on the statistics of bit-error rate in decoded blocks for higher signal to noise ratio. Presented results reveal that such method allows to receive goal results hundred or more times faster than using computer simulation.

Key words: data transmission system, error-correction coding, multithreshold decoder, optimum decoder, self-orthogonal codes, computer simulation, estimation of bit-error rate, additive white gaussian channel.

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