@inproceedings{59776f7f699042d2932dae528636ca9b,
title = "Beam Domain Massive MIMO Optical Communications with Power Allocation and Movable Lens",
abstract = "Traditional visible light communication systems do not exploit narrow beams so their power efficiency is limited. Therefore, some recent works suggested using a lens and a light-emitting diode (LED) array to generate narrow beams towards the user terminal (UT). However, the generated beams have blind areas and are not optimized with respect to the coordinate of the UT. In this paper, we propose a simple solution by determining which LEDs should be lighted in the array and how to distribute the restricted transmit power based on the coordinate of UT to maximize the received power in different cases. The scheme can realize beam direction adjustment and maximize energy efficiency whether the LEDs have power constraints or not. Simulation results show that there is a close relationship between the channel gain and the power allocation scheme, and the LED-to-lens distance can also be optimized to improve the received power.",
keywords = "movable lens, narrow beams, power allocation algorithm",
author = "Jingrui Li and Songchun Xu and Jiebo Shuai and Ziteng Zhang and Macheng Cui and Bingcheng Zhu and Chen Sun and Lanting Fang",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE 11th International Conference on Information, Communication and Networks, ICICN 2023 ; Conference date: 17-08-2023 Through 20-08-2023",
year = "2023",
doi = "10.1109/ICICN59530.2023.10393262",
language = "English",
series = "ICICN 2023 - 2023 IEEE 11th International Conference on Information, Communication and Networks",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "183--188",
booktitle = "ICICN 2023 - 2023 IEEE 11th International Conference on Information, Communication and Networks",
address = "United States",
}