Title :
Precision issues in the implementation of BCJR decoders
Author :
Thoren, K. ; Öwall, Viktor ; Anderson, John B.
Author_Institution :
Lund Univ., Sweden
Abstract :
The BCJR algorithm is a symbol-bysymbol soft-output MAP decoder for trellis codes. This paper studies the effect of wordlength variations on the BCJR performance and looks at two strategies for reducing the wordlength
Keywords :
convolutional codes; maximum likelihood decoding; trellis codes; BCJR algorithm; BCJR decoders; BCJR performance; symbol-bysymbol soft-output MAP decoder; trellis codes; wordlength reduction method; wordlength variations; Bit error rate; Convolutional codes; Decoding; Hardware; Information technology; Noise reduction; Noise robustness; Probability; Sparse matrices; Vectors;
Conference_Titel :
Information Theory, 2001. Proceedings. 2001 IEEE International Symposium on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-7123-2
DOI :
10.1109/ISIT.2001.936152
