New results on SNR estimation of MPSK modulated signals

Author

Li, Bin ; DiFazio, Robert A. ; Zeira, Ariela ; Pietraski, Philip J.

Author_Institution

InterDigital Commun. Corp., Melville, NY, USA

Volume

3

fYear

2003

fDate

7-10 Sept. 2003

Firstpage

2373

Abstract

Signal-to-noise ratio (SNR) is an important parameter in many receivers. In a previous letter B Li et al., (2002) we derived a maximum-likelihood amplitude estimator and obtained a low bias SNR estimation algorithm for a binary phase-shift keying (BPSK) modulated signal. We now extend the result and obtain a low bias SNR estimator for multiple phase-shift keying (MPSK) modulation. We compare our algorithm with others, such as a decision-directed approach. Simulations show that the new algorithm provides not only much lower bias and but also much smaller mean square error (MSE).

Keywords

amplitude estimation; maximum likelihood estimation; phase shift keying; BPSK modulated signal; MPSK modulated signal; bias SNR estimation algorithm; binary phase-shift keying; maximum-likelihood amplitude estimator; multiple phase-shift keying; signal-to-noise ratio; Amplitude estimation; Amplitude modulation; Binary phase shift keying; Maximum likelihood estimation; Mean square error methods; Multiaccess communication; Phase estimation; Phase modulation; Phase shift keying; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on

Print_ISBN

0-7803-7822-9

Type

conf

DOI

10.1109/PIMRC.2003.1259143

Filename

1259143