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Title: Carrier phase recovery of LDPC-coded systems based on the likelihood difference algorithm
Authors: Imad, Rodrigue 
Houcke, Sebastien
Affiliations: Department of Computer Engineering 
Keywords: LDPC codes
Likelihood functions
Parity-check matrix
Phase offset estimation
Issue Date: 2023-01-30
Publisher: Springer
Part of: Eurasip Journal on Advances in Signal Processing
Volume: 2023
Issue: 1
The problem of blind phase offset recovery of low density parity-check (LDPC)-coded systems is considered in this paper. We propose a new algorithm of phase offset estimation that involves the computation and maximization of a likelihood difference (LD)-based cost function calculated from the parity-check matrix of the code. We show in this paper that the new cost function has a simplified form compared to another algorithm proposed in the literature and presents similar estimation performance. Mean squared error (MSE) curves show very good performance of the proposed phase offset estimation algorithm, even at low signal-to-noise ratios.
ISSN: 16876172
DOI: 10.1186/s13634-023-00975-7
Open URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Computer Engineering

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