Title :
A note on tailbiting codes and their feedback encoders
Author :
Ståhl, Per ; Anderson, John B. ; Johannesson, Rolf
Author_Institution :
Dept. of Inf. Technol., Lund Univ., Sweden
fDate :
2/1/2002 12:00:00 AM
Abstract :
Tailbiting codes encoded by feedback convolutional encoders are studied. A condition for when tailbiting will work is given and it is described how the encoder starting state can be obtained for feedback encoders in both controller and observer canonical forms. Finally, results from a search for systematic feedback encoders that encode tailbiting codes with good decoding bit error probabilities are presented
Keywords :
convolutional codes; decoding; error statistics; BER; controller canonical forms; decoding bit error probabilities; feedback convolutional encoders; feedback encoders; observer canonical forms; search; starting state; tailbiting codes; Arithmetic; Block codes; Convolution; Convolutional codes; Decoding; Error probability; Information technology; Information theory; Polynomials; State feedback;
Journal_Title :
Information Theory, IEEE Transactions on
