Title :
A generic convolutional code Viterbi decoder generator
Author :
Zhong, Yan ; Yang, Lin ; Rafie, Manouchehr
Author_Institution :
ALTA Group of Cadence Design Syst. Inc., Sunnyvale, CA, USA
Abstract :
This paper presents a unified branch metric calculation method and a unified path-metric update scheduling algorithm to realize the Viterbi decoding process for decoding rate=1/2 convolutional codes. By using punctuation, the proposed algorithm can be extended to decode convolutional codes of any rate. With consideration of the tradeoffs between performance and hardware cost, one can also select different architectures toward different design objectives by specifying the number of processors being used, which results a fully-parallel, fully-serial, or a parallel-serial mixed architecture
Keywords :
Viterbi decoding; convolutional codes; digital signal processing chips; Viterbi decoder generator; branch metric index; convolutional code; fully-parallel architecture; fully-serial architecture; parallel-serial mixed architecture; path-metric update; punctuation; scheduling algorithm; Application specific integrated circuits; Clocks; Convolutional codes; Costs; Decoding; Hardware; Very large scale integration; Viterbi algorithm;
Conference_Titel :
ASIC, 1996., 2nd International Conference on
Conference_Location :
Shanghai
Print_ISBN :
7-5439-0940-5
DOI :
10.1109/ICASIC.1996.562788