Title :
The effect of the tailbiting restriction on feedback encoders
Author :
Ståhl, Per ; Anderson, John B. ; Johannesson, Rolf
Author_Institution :
Dept. of Inf. Tech., Lund Univ., Sweden
Abstract :
It is shown that, for short and moderate relative tailbiting lengths and high signal-to-noise ratios, systematic feedback encoders have better bit error performance than nonsystematic feedforward encoders. Conditions for when tailbiting will fail are given and it is described how the encoder starting state can be obtained for feedback encoders in both controller and observer canonical form
Keywords :
convolutional codes; error statistics; feedback; bit error performance; controller canonical form; feedback encoders; nonsystematic feedforward encoders; observer canonical form; polynomial convolutional encoder; signal-to-noise ratio; starting state; systematic feedback encoders; tailbiting lengths; tailbiting restriction effect; Convolutional codes; Decoding; Error probability; Feeds; Lead; Shift registers; State feedback; Upper bound;
Conference_Titel :
Information Theory, 2000. Proceedings. IEEE International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
0-7803-5857-0
DOI :
10.1109/ISIT.2000.866641
