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Spatial processing for frequency diversity schemes
Lagunas Hernandez, Miguel A.; Pérez Neira, Ana Isabel; Amin, Moeness; Vidal Manzano, José
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
A novel technique to obtain optimum blind spatial processing for frequency diversity spread spectrum (FDSS) communication systems is introduced. The sufficient statistics for a linear combiner, which prove ineffective due to the interferers frequency characteristics, are modified to yield improved detection under partial jamming in the spectral domain. Robustness to partial time jamming is achieved by extending the notion of replicas over the frequency axis to a repetition over the time variable. Analysis and simulations are provided, showing the advantages of using FDSS with spatial diversity to combat the interference when it is confined to a narrow frequency band or short time interval relative to the desired signal extent in either domain.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal
Mobile communication systems
Signal detection
Diversity reception
Partial time jamming
Signal detection
Spatial processing
Spread spectrum communication
Frequency diversity schemes
Frequency diversity spread spectrum communication
Frequency characteristics
Frequency axis
Linear combiner
Sufficient statistics
Radiofrequency interference
FDSS communication
Detecció del senyal

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