Title :
Iterative Decoding Threshold Analysis for LDPC Convolutional Codes
Author :
Lentmaier, Michael ; Sridharan, Arun ; Costello, Daniel J. ; Zigangirov, K.Sh.
Author_Institution :
Dept. of Electr. Eng., Univ. of Notre Dame, Notre Dame, IN, USA
Abstract :
An iterative decoding threshold analysis for terminated regular LDPC convolutional (LDPCC) codes is presented. Using density evolution techniques, the convergence behavior of an iterative belief propagation decoder is analyzed for the binary erasure channel and the AWGN channel with binary inputs. It is shown that for a terminated LDPCC code ensemble, the thresholds are better than for corresponding regular and irregular LDPC block codes.
Keywords :
AWGN channels; codecs; iterative decoding; parity check codes; AWGN channel; LDPC convolutional codes; iterative belief propagation decoder; iterative decoding threshold analysis; Block codes; Convolutional codes; Decoding; Error probability; Iterative decoding; Message passing; Belief propagation; LDPC convolutional codes; density evolution; iterative decoding; low-density parity-check (LDPC) codes; message passing; threshold analysis;
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.2010.2059490
