A new iterative phase tracking scheme

Author

Vanstraceele, C. ; Brossier, Jean Marc ; Barbot, J.-P. ; Geller, B.

Author_Institution

SATIE ENS Cachan, France

Volume

1

fYear

2003

fDate

15-18 Dec. 2003

Firstpage

578

Abstract

This paper presents a new synchronizing scheme designed for block turbo coded systems. The phase estimation relies on the feedback of the extrinsic information. A near optimum version of the algorithm based on the block turbo decoder devised by Pyndiah (1998) allows easy implementation. We display various results showing that the proposed algorithm is able to track frequency shifts and that it works very well in the case of general quadrature amplitude modulation (QAM) constellations. We also show that this turbo synchronizer works at low signal to noise ratios (SNR) taking completely advantage of the turbo coding possibilities.

Keywords

block codes; iterative decoding; phase estimation; quadrature amplitude modulation; synchronisation; tracking; turbo codes; QAM; SNR; block turbo coded systems; frequency shifts; phase estimation; phase tracking scheme; quadrature amplitude modulation; signal to noise ratios; synchronizing scheme; Bit error rate; Block codes; Displays; Iterative decoding; Phase estimation; Phased arrays; Product codes; Quadrature amplitude modulation; Signal to noise ratio; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on

Print_ISBN

0-7803-8185-8

Type

conf

DOI

10.1109/ICICS.2003.1292519

Filename

1292519