Title :
Interleaver design for turbo codes
Author :
Sadjadpour, Hamid R. ; Sloane, Neil J A ; Salehi, Masoud ; Nebe, Gabriele
Author_Institution :
AT&T Shannon Labs., Florham Park, NJ, USA
fDate :
5/1/2001 12:00:00 AM
Abstract :
The performance of a turbo code with short block length depends critically on the interleaver design. There are two major criteria in the design of an interleaver: the distance spectrum of the code and the correlation between the information input data and the soft output of each decoder corresponding to its parity bits. This paper describes a new interleaver design for turbo codes with short block length based on these two criteria. A deterministic interleaver suitable for turbo codes is also described. Simulation results compare the new interleaver design to different existing interleavers
Keywords :
concatenated codes; convolutional codes; correlation methods; error statistics; interleaved codes; iterative decoding; turbo codes; BER performance; concatenated codes; convolutional codes; correlation; decoder; deterministic interleaver; distance spectrum; information input data; interleaver design; iterative decoding; parity bits; primitive polynomial; random interleavers; short block length; simulation results; soft output; turbo codes; Bit error rate; Convolutional codes; Hardware; Interleaved codes; Intrusion detection; Iterative algorithms; Iterative decoding; Maximum likelihood decoding; Signal to noise ratio; Turbo codes;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
