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

Volume

2

fYear

2000

fDate

2000

Firstpage

1265

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st

Conference_Location

Tokyo

ISSN

1090-3038

Print_ISBN

0-7803-5718-3

Type

conf

DOI

10.1109/VETECS.2000.851328

Filename

851328