NDLI: Joint frequency domain equalisation and phase noise estimation for single-carrier modulations in doubly-selective channels

Content Provider	IET Digital Library
Author	Pedrosa, Pedro Dinis, Rui Nunes, Fernando Rodrigues, Antonio
Abstract	In this study the authors propose a novel joint detection and phase noise estimation scheme suited for severely time-dispersive channels. The authors consider single-carrier modulations combined with frequency domain equalisation schemes where the wireless transmission is impaired with phase noise. An iterative frequency-domain equaliser is assumed on the receiver side and the phase noise is estimated and compensated for after the equalisation step and within each iteration of the equaliser. In fact, by exploiting the Gaussianity of the equaliser output the authors are able to track the phase noise using stochastic recursive filtering techniques. These techniques share the same dynamic state-space (DSS) model. The observation equation corresponds to the measurement of the phase noise of a digitally-modulated signal affected by additive white Gaussian noise, and the dynamics equation corresponds to the Wiener–Lévy model for the phase noise. Supported on this DSS model the authors aim at estimating the unknown phase noise value given all observations up to the current time instant. In a Bayesian context this represents estimating recursively in time the filtering and the predictive distributions. From these distributions a minimum mean-squared error estimate of the phase noise is determined.
Starting Page	1138
Ending Page	1146
Page Count	9
ISSN	17518628
Volume Number	9
e-ISSN	17518636
Issue Number	Issue 8, May (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/9/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2014.0900
Journal	IET Communications
Publisher Date	2015-04-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Additive White Gaussian Noise Channel AWGN Bayes Method Bayesian Context Communication Channel Equalisation And Identification Digitally-modulated Signal Doubly-selective Channel DSS Model Dynamic State-space Model Dynamics Equation Equaliser Error Compensation Filtering Method in Signal Processing Filtering Theory Frequency Domain Analysis Interpolation And Function Approximation Iterative Frequency-domain Equaliser Iterative Method Joint Detection-phase Noise Estimation Scheme Joint Frequency Domain Equalisation Scheme Mathematical Analysis Minimum Mean-squared Error Estimate Modulation Modulation And Coding Method Numerical Analysis Observation Equation Phase Noise Phase Noise Compensation Phase Noise Estimation Predictive Distribution Radio Link And Equipment Receiver Side Recursive Filter Signal Detection Single-carrier Modulations Statistics Stochastic Linearised SCUC Stochastic Recursive Filtering Technique Time-dispersive Channel Wiener-Lévy Model Wireless Channel Wireless Transmission
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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