Work

On the asymptotic input-output weight distributions and thresholds of convolutional and turbo-like encoders

Year: 2002
Type: article
Abstract: We present a general method for computing the asymptotic input-output weight distribution of convolutional encoders. In some instances, one can derive explicit analytic expressions. In general, though, to determine the growth rate of the input-output weight distribution for a particular normalized input weight /spl kappa/ and output weight /spl omega/, a system of polynomial equations has to be solved. This method is then used to determine the asymptotic weight distribution of various concatenated code ensembles and to derive lower bounds on the thresholds of these ensembles under maximum-likelihood (ML) decoding.
Language: English
Open Access status: green
OpenAlex ID: W2120647302
FWCI: 3.183
Cites: 24
Cited by: 45
Related to: 10