Progressive refinement approach to MLE: an application to carrier frequency recovery

Author

Olmo, Gabriella ; Presti, Letizia Lo ; Bosetto, Davide

Author_Institution

Signal Analysis & Simulation Group, Politecnico di Torino, Italy

Volume

49

Issue

7

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

1148

Lastpage

1153

Abstract

Carrier frequency estimation plays an important role in digital communication receivers. A progressive refinement approach to maximum-likelihood estimation is proposed as a means to improve the performance of a suboptimal estimation algorithm and achieve different tradeoffs among complexity, accuracy and dynamic range. As an example, an application is described for carrier frequency recovery in burst-mode digital transmissions. The Luise and Reggiannini (1995) synchronization algorithm is employed as the master frequency estimator. The performance of the algorithm is demonstrated by means of a simulation study, assuming quadrature phase-shift keying modulation; the results show that the progressive refinement approach can be usefully exploited, for example to improve the estimation range of the LR algorithm, without losing the accuracy and the computational complexity

Keywords

computational complexity; digital communication; filtering theory; frequency estimation; maximum likelihood estimation; quadrature phase shift keying; receivers; synchronisation; MLE; QPSK; accuracy; algorithm performance; burst-mode digital transmissions; carrier frequency estimation; carrier frequency recovery; computational complexity; digital communication receivers; dynamic range; linear filter; master frequency estimator; maximum-likelihood estimation; progressive refinement; quadrature phase-shift keying modulation; simulation; suboptimal estimation algorithm; synchronization algorithm; Computational complexity; Computational modeling; Digital communication; Dynamic range; Frequency estimation; Frequency synchronization; Maximum likelihood estimation; Phase estimation; Phase modulation; Phase shift keying;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.935154

Filename

935154