IIIE 20352
INSTITUTO DE INVESTIGACIONES EN INGENIERIA ELECTRICA "ALFREDO DESAGES"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
A Robust Wireless OFDM Echo Cancellation System
Autor/es:
MICAEL BERNHARDT; FERNANDO H. GREGORIO; JUAN E. COUSSEAU
Lugar:
San Carlos de Bariloche
Reunión:
Congreso; XV Reunión de Trabajo en Procesamiento de la Información y Control - RPIC 2013; 2013
Institución organizadora:
Universidad Nacional de Río Negro
Resumen:
In this paper, we introduce an echo cancellation technique for full-duplex wireless Orthogonal Frequency Division Modulation (OFDM) communication. The novelty of the work is related to improvements in the models to compensate far-end channel and transmitter front-end, not considered before. Interference cancellation is based on Least Squares (LS) algorithm performed in two successive stages, while far-end channel estimation is accomplished by a training symbol.
Using simulation results, we show that the self-interference suppression achieved by our technique increases the system capacity up to levels close to the equivalent of a transmission without interference.
