Title :
Decoding “turbo”-codes with the soft output Viterbi algorithm (SOVA)
Author :
Hagenauer, Joachim ; Papke, Lutz
Author_Institution :
Tech. Univ. Munchen, Germany
fDate :
27 Jun-1 Jul 1994
Abstract :
Iterative decoding of two dimensional systematic convolutional codes has been termed “turbo”-(de)coding. It is shown that the simple soft output viterbi algorithm (SOVA) meets all the requirements for iterative decoding if an a priori term is added. With simple 4 and 16 state codes surprisingly good performance is achieved for the Gaussian and Rayleigh channel with a very small degradation relative to the complicated MAP algorithm
Keywords :
Gaussian channels; Rayleigh channels; Viterbi decoding; convolutional codes; interleaved codes; iterative methods; Gaussian channel; Rayleigh channel; interleaved product code; iterative decoding; soft output Viterbi algorithm; turbo-coding; turbo-decoding; two dimensional systematic convolutional codes; Bit error rate; Convolutional codes; Degradation; Fading; Feedback; Iterative algorithms; Iterative decoding; Product codes; Rayleigh channels; Viterbi algorithm;
Conference_Titel :
Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on
Conference_Location :
Trondheim
Print_ISBN :
0-7803-2015-8
DOI :
10.1109/ISIT.1994.394808
