Title :
Novel algorithm for continuous decoding of turbo codes
Author :
Bai, B. ; Ma, X. ; Wang, X.
Author_Institution :
Nat. key Lab. of Integrated Service Network, Xidian Univ., Xi´´an, China
fDate :
10/1/1999 12:00:00 AM
Abstract :
A novel type of recursive algorithm for decoding turbo codes with a convolutional interleaver is proposed, based on a symbol-by-symbol maximum a posteriori probability algorithm. It requires only a forward recursion which can be performed in parallel, and the number of variables to be stored does not increase with decoding delay. This algorithm can be used in continuous decoding for both recursive and nonrecursive encoders. Simulation results of demonstrating its performance are presented
Keywords :
convolutional codes; decoding; error correction codes; interleaved codes; turbo codes; MAP algorithm; continuous decoding; convolutional interleaver; forward recursion; nonrecursive encoders; recursive algorithm; recursive encoders; soft-output algorithm; symbol-by-symbol maximum a posteriori probability algorithm; turbo codes;
Journal_Title :
Communications, IEE Proceedings-
DOI :
10.1049/ip-com:19990689
