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NDA waveform estimation in the low-SNR regime
López Salcedo, José Antonio; Vázquez Grau, Gregorio
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
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.
Peer Reviewed
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)
Article
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERING INC
         

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Villares Piera, Nemesio J.; Calvo Muntaner, Eduard; Carlavilla Márquez, Màxim; Lamarca Orozco, M. Meritxell; López Salcedo, José Antonio; Rey Micolau, Francesc; Riba Sagarra, Jaume; Sala Álvarez, José; Vázquez Grau, Gregorio
Rodríguez, E; Lamarca Orozco, M. Meritxell; López Salcedo, José Antonio; Rey Micolau, Francesc; Riba Sagarra, Jaume; Sala Álvarez, José; Vázquez Grau, Gregorio; Villares Piera, Nemesio J.; Jalón, A
López Salcedo, José Antonio; Vázquez Grau, Gregorio
López Salcedo, José Antonio; Vázquez Grau, Gregorio
 

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