DocumentCode
2618755
Title
A posteriori probabilities and performance evaluation of trellis codes
Author
Loeliger, Hans Andrea
Author_Institution
Linkoping Univ., Sweden
fYear
1994
fDate
27 Jun-1 Jul 1994
Firstpage
335
Abstract
A new method for the performance evaluation of (Viterbi decoded) trellis codes is investigated. The method is based on the fact that the a posteriori probability of individual decoded bits can be computed very efficiently. Unfortunately, the improvement of the new method over ordinary simulation is found to be only marginal, which reveals unexpectedly strong fluctuations of the reliability of individual decoded bits
Keywords
Viterbi decoding; convolutional codes; error statistics; trellis codes; Viterbi decoding; a posteriori probabilities; convolutional-type codes; error rate; fluctuations; forward-backward algorithm; individual decoded bits; performance evaluation; reliability; simulation; trellis codes; Block codes; Convolution; Convolutional codes; Costs; Decoding; Error analysis; Fluctuations; Hidden Markov models; Signal processing algorithms; Viterbi algorithm;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on
Conference_Location
Trondheim
Print_ISBN
0-7803-2015-8
Type
conf
DOI
10.1109/ISIT.1994.394683
Filename
394683
Link To Document