Skip to Main content Skip to Navigation
Journal articles

Efficient Precoding for Massive MIMO Downlink under PA Nonlinearities

Abstract : This letter investigates the compensation of the power amplifier (PA) nonlinear distortion (NLD) in large-scale multiuser (MU) multiple-input multiple-output (MIMO) downlink systems. We introduce a PA-aware precoding approach that exploits the high-dimensional degrees of freedom (DoFs), allowed by equipping the base station (BS) by a high number of antennas, and performs the precoded signals that, when amplified and passed through the channel, guarantee excellent transmission quality. Specifically, we formulate the proposed PA-aware precoding approach as a simple convex optimization problem which enables efficient, low-complexity and reliable algorithm implementations. The simulation results demonstrate the strong potential of the proposed approach in terms of improving the link quality and reducing the required computational complexity.
Document type :
Journal articles
Complete list of metadata
Contributor : Rafik Zayani <>
Submitted on : Monday, May 3, 2021 - 3:58:49 PM
Last modification on : Thursday, May 6, 2021 - 12:50:49 PM
Long-term archiving on: : Wednesday, August 4, 2021 - 7:36:09 PM


Files produced by the author(s)



Rafik Zayani, Hmaied Shaïek, Daniel Roviras. Efficient Precoding for Massive MIMO Downlink under PA Nonlinearities. IEEE Communications Letters, Institute of Electrical and Electronics Engineers, 2019, 23 (9), ⟨10.1109/LCOMM.2019.2924001⟩. ⟨hal-02447523v1⟩



Record views


Files downloads