A data-aided feedforward algorithm has been proposed by Kuo and Fitz (see IEEE Trans. Commun., vol.45, p.1412-26, 1997) for carrier frequency estimation in M-ary phase-shift keying (PSK) transmissions over frequency-flat Rayleigh fading channels. Its accuracy is very good but the estimation range may be limited under certain operating conditions. Also, its application requires a knowledge of the Doppler bandwidth. We show that the estimation range can be greatly extended without sacrificing the estimation accuracy and a simple technique is indicated to measure the Doppler bandwidth. This allows the algorithm to operate in an adaptive manner in a time-varying environment.
|Autori:||MORELLI M; U. MENGALI; G. M. VITETTA|
|Titolo:||Further Results in Carrier Frequency Estimation for Transmissions over Flat Fading Channels|
|Anno del prodotto:||1998|
|Digital Object Identifier (DOI):||10.1109/4234.736174|
|Appare nelle tipologie:||1.1 Articolo in rivista|