Title :
Post-decoding timing synchronization of turbo codes on AWGN channels
Author :
Mielczarek, Bartosz ; Svensson, Arne
Author_Institution :
Dept. of Signals & Syst., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
This paper presents a novel approach to the timing offset compensation based on knowledge of the code. The proposed algorithm consists of two parts: the first, an ML-optimal, rough synchronization and the second, a precise synchronization method, based on particular features of turbo coding. The performance of the presented algorithm is superior to the typical ML-based synchronizer and is close to the performance of a perfectly synchronized system
Keywords :
AWGN channels; decoding; maximum likelihood estimation; optimisation; synchronisation; timing; turbo codes; AWGN channels; HF signal transmission; ML-based synchronizer; ML-optimal rough synchronization; QPSK; algorithm; algorithm performance; maximum-likelihood estimation; post-decoding timing synchronization; precise synchronization method; soft bit distribution; timing offset compensation; turbo codes; turbo coding; AWGN channels; Additive white noise; Bit error rate; Delay; Gaussian noise; Matched filters; Pulse shaping methods; Sampling methods; Timing; Turbo codes;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851328
