@inproceedings{e6e2806d482c4e22b1f87245f251719c,
title = "High SNR Analysis of RIS-Aided MIMO Broadcast Channels",
abstract = "We analyze the influence of a reconfigurable intelligent surface (RIS) on the Gram channel eigenvalues in a high signal-to-noise ratio (SNR) scenario. This allows to connect specific channel properties with the rank improvement capabilities of the RIS. In particular, fundamental limits due to a possible line-of-sight (LOS) setup between the base station (BS) and the RIS are derived. Furthermore, dirty paper coding (DPC) based schemes are compared to linear precoding in such a scenario and it is shown that under certain channel conditions, the performance gap between DPC and linear precoding vanishes.",
keywords = "eigenvalues, high SNR, line-of-sight, waterfilling",
author = "Dominik Semmler and Michael Joham and Wolfgang Utschick",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 24th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2023 ; Conference date: 25-09-2023 Through 28-09-2023",
year = "2023",
doi = "10.1109/SPAWC53906.2023.10304487",
language = "English",
series = "IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "221--225",
booktitle = "2023 IEEE 24th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2023 - Proceedings",
}