IEICE Trans - Performance Analysis and Optimization of Non-Data-Aided Carrier Frequency Estimator for APSK Signals

Performance Analysis and Optimization of Non-Data-Aided Carrier Frequency Estimator for APSK Signals

Nan WU
Hua WANG
Jingming KUANG
Chaoxing YAN

Publication
IEICE TRANSACTIONS on Communications Vol.E95-B No.6 pp.2080-2086
Publication Date: 2012/06/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.2080
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword:
carrier frequency estimation, non-data-aided, amplitude and phase shift keying, Cramer-Rao bound, jitter variance, optimization,

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Summary:
This paper investigates the non-data-aided (NDA) carrier frequency estimation of amplitude and phase shift keying (APSK) signals. The true Cramer-Rao bound (CRB) for NDA frequency estimation of APSK signals are derived and evaluated numerically. Characteristic and jitter variance of NDA Luise and Reggiannini (L&R) frequency estimator are analyzed. Verified by Monte Carlo simulations, the analytical results are shown to be accurate for medium-to-high signal-to-noise ratio (SNR) values. Using the proposed closed-form expression, parameters of the algorithm are optimized efficiently to minimize the jitter variance.