Title :
Joint synchronization and decoding of turbo codes on AWGN channels
Author :
Mielczarek, Bartosz ; Svenssen, A.
Author_Institution :
Dept. of Signals & Syst., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
This paper presents the behaviour of a turbo coding scheme when the symbol timing is not perfectly known. The algorithm for timing synchronization together with the theoretical Cramer Rao bound and the performance of an NDA ML synchronizer are presented. It is shown that synchronization can be achieved using the soft bit outputs of the turbo decoder without the need of using complex separate synchronizers prior to feeding the signal to the turbo decoder
Keywords :
AWGN channels; concatenated codes; convolutional codes; decoding; synchronisation; timing; turbo codes; AWGN channels; Cramer Rao bound; NDA ML synchronizer; decoding; joint synchronization; parallel concatenated codes; recursive convolutional encoders; soft bit outputs; symbol timing; timing synchronization algorithm; turbo codes; turbo decoder; AWGN channels; Communication systems; Cramer-Rao bounds; Degradation; Frequency synchronization; Iterative algorithms; Iterative decoding; Testing; Timing; Turbo codes;
Conference_Titel :
Vehicular Technology Conference, 1999 IEEE 49th
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-5565-2
DOI :
10.1109/VETEC.1999.778365
