REDUCING TRANSMITTER-TO-RECEIVER NON-LINEAR DISTORTION AT A TRANSMITTER PRIOR TO ESTIMATING AND CANCELLING KNOWN NON-LINEAR DISTORTION AT A RECEIVER

摘要

A communication system is provided that includes a transmitter device and a receiver device. The transmitter device transmits input data as a transmitted signal having the known non-linear distortion (NLD) characteristic. The receiver receives a received signal that represents a channel affected version of the transmitted signal and that has the known NLD characteristic. The received signal includes power amplifier distortion (PAD) induced by the transmitter device's power amplifier. The receiver is designed to iteratively estimate, based on the known NLD characteristic, remaining PAD caused by the power amplifier, and to iteratively cancel estimated PAD to reduce PAD in the received signal.