Title :
Expansion property of feedforward convolutional encoders
Author :
Khayrallah, Ali S.
Author_Institution :
Dept. of Electr. Eng., Delaware Univ., Newark, DE, USA
fDate :
27 Jun-1 Jul 1994
Abstract :
We study the input/output (i/o) relations of feedforward convolutional encoders. Namely, we investigate expansion factor δ, which measures the increase in distance from input sequence pairs to their corresponding code sequence pairs. We derive a bound to δ based on the code´s weight profile. We discuss how extending the memory affects δ
Keywords :
convolutional codes; encoding; feedforward; sequences; bound; code sequence pairs; code weight profile; distance; expansion factor; expansion property; feedforward convolutional encoders; input sequence pairs; input/output relations; memory; Bit error rate; Block codes; Convolutional codes; Decoding; Upper bound; Viterbi algorithm;
Conference_Titel :
Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on
Conference_Location :
Trondheim
Print_ISBN :
0-7803-2015-8
DOI :
10.1109/ISIT.1994.394950
