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Title:
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NDA waveform estimation in the low-SNR regime
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Author:
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López Salcedo, José Antonio; Vázquez Grau, Gregorio
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
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Abstract:
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This correspondence addresses the problem of nondata-aided
waveform estimation for digital communications. Based on the unconditional
maximum likelihood criterion, the main contribution of this correspondence
is the derivation of a closed-form solution to the waveform estimation
problem in the low signal-to-noise ratio regime. The proposed estimation
method is based on the second-order statistics of the received signal
and a clear link is established between maximum likelihood estimation and
correlation matching techniques. Compression with the signal-subspace is
also proposed to improve the robustness against the noise and to mitigate
the impact of abnormals or outliers. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal
-Signal processing
-Digital communication
-Data compression (Telecommunication)
-Correlation matching techniques
-Correlation methods
-Data compression
-Digital communication
-Maximum likelihood estimation
-Nondata-aided waveform estimation
-Second-order statistics
-Low signal-to-noise ratio regime
-Signal-subspace compression
-Unconditional maximum likelihood criterion
-Processament del senyal
-Codificació del senyal
-Compressió de dades (Telecomunicació) |
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Rights:
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Document type:
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Article |
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Published by:
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IEEE-INST ELECTRICAL ELECTRONICS ENGINEERING INC
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