Title :
Precoding for convolutional codes
Author :
Khayrallah, Ali S.
Author_Institution :
Advanced Dev. & Res., Ericsson Inc., Research Triangle Park, NC, USA
Abstract :
The study the distance relations between the input sequences and the code sequences in convolutional codes. Namely, starting from some encoder realization of a code, we investigate the effect of inserting a precoder before the encoder. The precoder is a one-to-one operation on input sequences, and it may have memory. We show how the precoder affects the bit error rate of the input and the level of protection of the input subsequences
Keywords :
binary sequences; coding errors; convolutional codes; error statistics; memoryless systems; binary convolutional codes; bit error rate; code sequences; distance relations; encoder; input sequences; input subsequences protection; memory; memoryless channel; precoder; precoding; AWGN; Bit error rate; Block codes; Convolutional codes; Decoding; Error correction; Feedback; Memoryless systems; Protection; Viterbi algorithm;
Conference_Titel :
Communications, 1996. ICC '96, Conference Record, Converging Technologies for Tomorrow's Applications. 1996 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-3250-4
DOI :
10.1109/ICC.1996.540256
