Title :
Performance analysis of decision-directed maximum-likelihood phase estimators for M-PSK modulated signals
Author :
Gaudenzi, KccardoDe ; Garde, Tobias ; Vanghi, Vieri
Author_Institution :
Eur. Space Res. & Technol. Centre, Noordwijk, Netherlands
fDate :
12/1/1995 12:00:00 AM
Abstract :
We investigate performance of decision-directed maximum-likelihood carrier phase synchronizers for M-PSK signalling (M⩽8) on the AWGN channel. Decision-directed feedback (DD-FB) and feedforward decision feedback (FF-DFB) structures are analyzed and compared in detail. A new, accurate model for the FF-DFB synchronizer is presented. Open loop characteristics and closed loop performance, in terms of steady-state jitter and cycle slip rate, are presented in the same framework for both the DD-FB and FF-DFB synchronizers. Performance comparison between the two phase estimator architectures is finally made for each modulation scheme investigated
Keywords :
Gaussian channels; automatic repeat request; feedforward; jitter; maximum likelihood estimation; phase estimation; phase shift keying; synchronisation; AWGN channel; FF-DFB synchronizer; M-PSK modulated signals; M-PSK signalling; accurate model; closed loop performance; cycle slip rate; decision-directed feedback; decision-directed maximum-likelihood phase estimators; feedforward decision feedback; maximum-likelihood carrier phase synchronizers; modulation; open loop characteristics; performance analysis; performance comparison; phase estimator architectures; steady-state jitter; AWGN; Feedback loop; Feedforward systems; Maximum likelihood estimation; Performance analysis; Phase estimation; Phase modulation; Sampling methods; Signal analysis; Timing;
Journal_Title :
Communications, IEEE Transactions on
