Impact of Imperfect Parameter Estimation on the Performance of Multi-User ARGOS Receivers
| Autor: | Thibaud Calmettes, Marie-Laure Boucheret, Fares Fares, Benoit Escrig, Herve Guillon |
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| Přispěvatelé: | Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Laboratoire de recherche en télécommunications spatiales et aéronautiques - TéSA (FRANCE) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Computer science
Estimation theory MUD algorithms Réseaux et télécommunications Context (language use) Signal ARGOS system Amplitude Signal-to-noise ratio Argos system Statistics Bit error rate Communications satellite Demodulation Traitement du signal et de l'image Algorithm Computer Science::Information Theory |
| Zdroj: | GLOBECOM |
| Popis: | In this paper, we analyze the performance of Successive Interference Cancelation (SIC) receivers in the context of the ARGOS satellite system. Multi-user SIC receivers are studied in presence of imperfect estimates of signal parameters. We derive performance graphs that show the parameter ranges over which a successful demodulation of all users is possible. First, the graphs are derived in the context of perfect parameter estimation. Then, imperfect parameter estimation is considered. Erroneous estimations affect both the amplitude and the time delay of the received signal. Carrier frequencies are assumed to be accurately measured by the receiver. ARGOS SIC receivers are shown to be both robust to imperfect amplitude estimation and sensitive to imperfect time delay estimation. |
| Databáze: | OpenAIRE |
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