@inproceedings{63331e50e91e4bdb8f0f3e2956d655e9,
title = "Near Optimal Hybrid Digital-Analog Beamforming for Point-to-Point MIMO-OTFS Transmissions",
abstract = "In this paper, an orthogonal time frequency space modulation-based point-to-point multiple-input multiple-output (MIMO-OTFS) transmission is devised. Specifically, we propose a low-complexity hybrid digital-analog beamforming (HBF) scheme for MIMO-OTFS transmissions, in which symbols can be transmitted in an interference-free manner. In particular, the designed HBF scheme exploits the delay-Doppler (DD) domain path separability, which gives rise to a low-complexity DD domain precoding that can obtain a near-optimal rate performance facilitated by a path-wise power allocation. Simulation results demonstrate that the proposed HBF scheme achieves near-optimal rate and improved error performance in comparison to the singular value decomposition (SVD) precoding benchmark.",
keywords = "achievable rate, MIMO, OTFS, precoding",
author = "Mengmeng Liu and Shuangyang Li and Zhiqiang Wei and Baoming Bai",
note = "Funding Information: This work was supported in part by the National Key R&D Program of China under Grant 2021YFA1000500, and in part by the National Natural Science Foundation of China under Grant 62171356. Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE Wireless Communications and Networking Conference, WCNC 2023 ; Conference date: 26-03-2023 Through 29-03-2023",
year = "2023",
month = may,
day = "12",
doi = "10.1109/WCNC55385.2023.10118648",
language = "English",
series = "IEEE Wireless Communications and Networking Conference, WCNC",
publisher = "IEEE, Institute of Electrical and Electronics Engineers",
booktitle = "2023 IEEE Wireless Communications and Networking Conference, WCNC 2023 - Proceedings",
address = "United States",
}