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Revisiting the calculation of effective free distance of turbo codes

Research output: Contribution to journalJournal article

Published

Journal publication date3/01/2008
JournalElectronics Letters
Journal number1
Volume44
Number of pages2
Pages43-44
Original languageEnglish

Abstract

The expression for the minimum Hamming weight of the output of a constituent convolutional encoder, when its input is a weight-2 sequence is revisited. The new expression particularly facilitates the calculation of the effective free distance of recently proposed schemes, namely non-systematic turbo codes and pseudo-randomly punctured turbo codes.