Comparison of four SNR estimators for QPSK modulations

Author

Beaulieu, Norman C. ; Toms, Andrew S. ; Pauluzzi, David R.

Author_Institution

Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, Ont., Canada

Volume

4

Issue

2

fYear

2000

Firstpage

43

Lastpage

45

Abstract

Four signal-to-noise ratio (SNR) estimators for quaternary phase-shift keying (QPSK)-like signaling are proposed and examined. Two are based on receiver statistics directly related to the SNR while two others are based on receiver statistics inversely related to the SNR. The results show that the estimators based on the inverse of the SNR perform better than the estimators based on the SNR.

Keywords

delays; digital radio; land mobile radio; mean square error methods; multipath channels; noise; parameter estimation; quadrature phase shift keying; radio receivers; statistical analysis; telecommunication signalling; MSE; QPSK modulation; QPSK-like signaling; SNR estimators; SNR inverse; delay-spread estimator; digital mobile radio systems; mean square error; multipath delay-spread; quaternary phase-shift keying; receiver statistics; signal-to-noise ratio; Delay estimation; Mobile communication; Noise level; Phase estimation; Phase measurement; Phase shift keying; Quadrature phase shift keying; Receivers; Signal to noise ratio; Statistics;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/4234.824751

Filename

824751