Title :
Lower bound on BER of finite-length turbo codes based on EXIT characteristics
Author :
Lee, Jeong W. ; Blahut, Richard E.
Author_Institution :
Coordinated Sci. Lab., Univ. of Illinois, Urbana, IL, USA
fDate :
4/1/2004 12:00:00 AM
Abstract :
We present a generalized extrinsic information transfer characteristics of the iterative turbo decoding algorithm. By using this tool, we obtain a lower bound on the bit error rate performance of the finite-length turbo codes showing a gentle waterfall over a wide waterfall region.
Keywords :
error statistics; iterative decoding; turbo codes; BER; bit error rate; extrinsic information transfer; finite-length turbo code; generalized extrinsic information transfer characteristics; iterative turbo decoding algorithm; AWGN; Algorithm design and analysis; Bit error rate; Convergence; Error analysis; Iterative algorithms; Iterative decoding; Mutual information; Random variables; Turbo codes;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.825727
