@inproceedings{9fddb38c3d324df7a2ca38e327946ab7,
title = "Distortion cancellation precoding for OFDM-SDMA downlink with nonlinear power amplifiers",
abstract = "In this work we consider an OFDM-SDMA downlink with a real life, nonlinear Power Amplifier (PA). It is well known that a nonlinear PA produces nonlinear distortions. We propose a novel iterative algorithm based on Zero Forcing (ZF) precoding to cancel the nonlinear distortions seen at the mobile devices while preserving the interference-free reception due to ZF. The proposed algorithm also keeps the out-of-band radiation of the transmitted signals low, in order to satisfy spectral purity requirements. For a low Back-Off (BO) scenario, where the nonlinear distortions are strong, the proposed algorithm shows a much lower Symbol Error Rate (SER) and much higher power efficiency than the well known ZF-SDMA with a real life PA.",
keywords = "Multi-user MIMO, Nonlinear Power Amplifier, OFDM, Precoding, SDMA",
author = "Ilia Iofedov and Dov Wulich",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 26th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2015 ; Conference date: 30-08-2015 Through 02-09-2015",
year = "2015",
month = dec,
day = "1",
doi = "10.1109/PIMRC.2015.7343389",
language = "English",
series = "IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC",
publisher = "Institute of Electrical and Electronics Engineers",
pages = "704--709",
booktitle = "2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2015",
address = "United States",
}