Sociedade Brasileira de Telecomunicações · desde 1983 secretaria@sbrt.org.br
← SBrT2001

Generating Series and Performance Bounds for Convolutional Codes - Part 2: Transmission on Burst-Error Channels

Cecilio Jose Lins Pimentel

Resumo

"We present an analytical method for evaluating the performance of a communication system that employs a convolutional code, a block interleaving with finite interleaving depth, a binary channel that exhibits statistical dependence in the occurrence of errors, and a decoder that implements the Viterbi algorithm with Hamming metric. The main idea is to apply combinatorial methods to derive a formula for bounds to first-event and bit error probabilities in terms of coefficients of a generating series. The method is used to investigate the tradeoff between coding parameters and interleaving depth to achieve a required performance."