Title :
Reduction of the number of iterations in turbo decoding using extrinsic information
Author :
Kim, Bonghoe ; Lee, Hwang Soo
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
Abstract :
Turbo decoding can be done in an iterative manner. This requires the delay and computational complexity for decoding an input data. We propose an efficient algorithm of decoding turbo codes that can greatly reduce the delay and computation. It uses extrinsic information as the reliability measure of each decoded bit. When the variance of the extrinsic information exceeds a threshold the iteration for decoding stops with negligible performance loss to conventional decoding algorithm
Keywords :
computational complexity; iterative decoding; turbo codes; computational complexity; delay; extrinsic information; iterations; performance loss; reliability measure; turbo decoding; Convolutional codes; Delay; Iterative algorithms; Iterative decoding; Laboratories; Maximum likelihood decoding; Performance loss; Research and development; Telecommunications; Turbo codes;
Conference_Titel :
TENCON 99. Proceedings of the IEEE Region 10 Conference
Conference_Location :
Cheju Island
Print_ISBN :
0-7803-5739-6
DOI :
10.1109/TENCON.1999.818459
