Title :
Unequal error protection using convolutional codes
Author :
Brissett, Rudolph ; Sodha, J.
Author_Institution :
Dept. of Phys., Univ. of the West Indies, Kingston, Jamaica
Abstract :
Two unequal error protection (UEP) techniques are presented. The first technique will illustrate how the information digits corresponding to the columns of a puncturing matrix exhibit different levels of error protection. The second scheme Is based on biasing the probability with which certain states of the convolutional encoder occur. Knowledge of this bias is utilized within the Viterbi decoder to provide an improved error protection for certain digits
Keywords :
Viterbi decoding; convolutional codes; error correction codes; probability; Viterbi decoder; convolutional codes; convolutional encoder; information digits; probability biasing; puncturing matrix; unequal error protection; Convolutional codes; Decoding; Error correction; Error correction codes; Linear matrix inequalities; Physics; Protection; Redundancy; Speech coding; Viterbi algorithm;
Conference_Titel :
Southeastcon '96. Bringing Together Education, Science and Technology., Proceedings of the IEEE
Conference_Location :
Tampa, FL
Print_ISBN :
0-7803-3088-9
DOI :
10.1109/SECON.1996.510065
