Talks and Poster Presentations (with Proceedings-Entry):

L. Ribeiro, S. Schwarz, M. Haardt:
"Low-Complexity Zero-Forcing Precoding for XL-MIMO Transmissions";
Talk: 29th European Signal Processing Conference (EUSIPCO), Dublin, Ireland; 08-23-2021 - 08-27-2021; in: "Proc. 29th European Signal Processing Conference (EUSIPCO)", (2021), ISBN: 978-9-0827-9706-0; 1 - 5.

English abstract:
Deploying antenna arrays with an asymptotically large aperture will be central to achieving the theoretical gains of massive MIMO in beyond-5G systems. Such extra-large MIMO (XL-MIMO) systems experience propagation conditions which are not typically observed in conventional massive MIMO systems, such as spatial non-stationarities and near-field propagation. Moreover, standard precoding schemes, such as zero-forcing (ZF), may not apply to XL-MIMO transmissions due to the prohibitive complexity associated with such a large-scale scenario. We propose two novel precoding schemes that aim at reducing the complexity without losing much performance. The proposed schemes leverage a plane-wave approximation and user grouping to obtain a low-complexity approximation of the ZF precoder. Our simulation results show that the proposed schemes offer a possibility for a performance and complexity trade-off compared to the benchmark schemes.

"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)

Created from the Publication Database of the Vienna University of Technology.