Title :
Unequal error protection scheme using several convolutional codes
Author :
Matsunaga, Mari ; Asano, David K. ; Kohno, Ryuji
Author_Institution :
Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan
fDate :
29 Jun-4 Jul 1997
Abstract :
This paper proposes and investigates a coding and decoding scheme to achieve unequal error protection (UEP) using several convolutional codes with different error-correcting capabilities. An upper bound of decoder-selection-errors (DSE) in decoding is derived. We search good sets of codes which can reduce DSE, and introduce a biased metric in decoding to compensate performance degradation due to DSE
Keywords :
Viterbi decoding; convolutional codes; error correction codes; UEP; biased metric; coding; convolutional codes; decoder-selection-errors; decoding; error-correcting capabilities; unequal error protection; upper bound; AWGN; Computer errors; Convolutional codes; Decoding; Equations; Error correction; Error correction codes; Intelligent control; Upper bound; Viterbi algorithm;
Conference_Titel :
Information Theory. 1997. Proceedings., 1997 IEEE International Symposium on
Conference_Location :
Ulm
Print_ISBN :
0-7803-3956-8
DOI :
10.1109/ISIT.1997.613016
