Title :
Lower bound on BER performance of finite length turbo codes using Gaussian approximation
Author :
Lee, Jeong W. ; Blahut, Richard E.
Author_Institution :
Illinois Univ., Urbana, IL, USA
fDate :
29 June-4 July 2003
Abstract :
In this paper, we propose a novel method to obtain the lower bound on the average BER of the finite-length turbo codes in an additive white Gaussian noise (AWGN) channel considering the transition probability of the average BER curve between two asymptotes. For this purpose, we use the SNR TCB chart based on the Gaussian approximation of extrinsic values for each frame.
Keywords :
AWGN channels; error statistics; probability; turbo codes; AWGN; SNR; additive white Gaussian noise channel; average BER curve; finite-length turbo codes; lower bound; transfer characteristics band chart; transition probability; AWGN; Additive white noise; Bit error rate; Error probability; Gaussian approximation; Iterative decoding; Signal analysis; Signal design; Signal to noise ratio; Turbo codes;
Conference_Titel :
Information Theory, 2003. Proceedings. IEEE International Symposium on
Print_ISBN :
0-7803-7728-1
DOI :
10.1109/ISIT.2003.1228455
