chance.tarver
Publications Conference

OFDM-based beam-oriented digital predistortion for massive MIMO

Chance Tarver, Alexios Balatsoukas-Stimming, Christoph Studer, Joseph R Cavallaro

2021 IEEE International Symposium on Circuits and Systems · 2021

DOI

Abstract

Linearization of massive MIMO arrays is a significant computational challenge that typically scales with the number of antennas. In this work, we introduce a beam-oriented digital predistortion (DPD) scheme for OFDM-based massive MIMO systems that applies predistortion before the precoder in the OFDM guard-band subcarriers. Using simulation results, we show that, for a 64 antenna massive MIMO array, our proposed method can achieve the same DPD performance as a conventional DPD method while requiring an order of magnitude fewer multiplications.

BibTeX 
@inproceedings{tarver2021ofdm,
 author = {Tarver, Chance and Balatsoukas-Stimming, Alexios and Studer, Christoph and Cavallaro, Joseph R},
 booktitle = {2021 IEEE International Symposium on Circuits and Systems (ISCAS)},
 organization = {IEEE},
 pages = {1--5},
 title = {OFDM-based beam-oriented digital predistortion for massive MIMO},
 year = {2021}
}