Title :
A note on the analysis of finite length turbo decoding
Author :
Lee, Jeong W. ; Blahut, Richard E.
Author_Institution :
Illinois Univ., Urbana, IL, USA
Abstract :
The SNR transfer characteristic band of the extrinsic value in the turbo decoding is proposed. The proposed method can explain the bimodal Gaussian average histogram of the extrinsic value in the waterfall region of the finite length turbo decoding. The proposed method is also useful to discuss the probabilistic convergence behavior of the finite length turbo decoding as well as the wide waterfall region in the BER performance curve.
Keywords :
decoding; error statistics; turbo codes; BER performance curve; SNR transfer characteristic band; bimodal Gaussian average histogram; bit error rate performance; extrinsic value; finite length turbo decoding; probabilistic convergence behavior; waterfall region; Bit error rate; Convergence; Decoding; Gaussian approximation; Gaussian noise; Histograms; Mutual information; Probability density function; Signal to noise ratio; Turbo codes;
Conference_Titel :
Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7501-7
DOI :
10.1109/ISIT.2002.1023355
