@inproceedings{69cdf5b5b6784d1181cdd87fc0a03107,
title = "Codeword Design for Asymmetric Millimeter-Wave MIMO Systems under Mutual Coupling",
abstract = "Asymmetric mmWave massive MIMO systems have attracted much interest due to the massive available spectrum and lower power consumption. In these systems, once a communication link has been established in the beam training stage, part of the array can be deactivated to support asymmetric uplink-downlink (UL-DL) traffic in the data transmission stage. For this array with deactivated elements, however, the original ideal codeword requires further compensation to overcome the pattern distortion caused by mutual coupling between the activated and deactivated elements. We therefore propose a virtual impedance method, which computes a coupling compensation matrix based on a virtual impedance. We then use the compensation matrix to refine the original codeword and correct the distortion of beam pattern resulting from mutual coupling due to the partially deactivated elements. Simulation results show that the proposed virtual impedance method can not only make up for the angular distortion but also increase the gain in the desired direction.",
keywords = "Asymmetric millimeter-wave massive MIMO, beam pattern, codeword, mutual coupling, virtual impedance",
author = "Qi Li and Zheng, \{Fu Chun\} and Ke Xu and Zihao Chen",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 34th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2023 ; Conference date: 05-09-2023 Through 08-09-2023",
year = "2023",
doi = "10.1109/PIMRC56721.2023.10294062",
language = "英语",
series = "IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2023 IEEE 34th Annual International Symposium on Personal, Indoor and Mobile Radio Communications",
address = "美国",
}