INVESTIGADORES
GREGORIO Fernando Hugo
congresos y reuniones científicas
Título:
BROADBAND POWER AMPLIFIER DISTORTION CANCELLATION WITH MODEL ESTIMATION IN THE RECEIVER
Autor/es:
FERNANDO GREGORIO, STEFAN WERNER; JUAN COUSSEAU ; RISTO WICHMAN
Lugar:
Helsinki
Reunión:
Workshop; Signal Processing Advances in Wireless Communications, 2007. SPAWC 2007. IEEE 8th Workshop on; 2007
Institución organizadora:
Helsinki University of Technology
Resumen:
This paper proposes a practical receiver cancellation technique
for removing nonlinear power amplifier (PA) distortion
in OFDM systems. By performing the estimation of the PA
model parameters at the receiver, the implementation complexity
of the transmitter can be reduced. Furthermore, a simple
adaptation rule is provided to enable tracking of the PA
model parameters. As a consequence, cancellation of nonlinear
distortion can be achieved without assuming that the PA
model is known a priori at the receiver. Simulation results
show that good levels of distortion cancellation are possible
for a system with a broadband PA with memory.
a priori at the receiver. Simulation results
show that good levels of distortion cancellation are possible
for a system with a broadband PA with memory.