Near-Field Full Dimensional Beam Codebook Design for XL-MIMO Communications
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所属单位：School of Computer Science and Information Engineering, Hefei University of Technology
发表刊物：2023 IEEE Global Communications Conference
项目来源：National Natural Science Foundation of China with Grants 62371180, 61971176 and 62171474，National Ke
关键字：Training, Closed-form solutions, Spectral efficiency, Simulation, UHF antennas, Transceivers, Antenna arrays
摘要：Extremely large-scale multiple-input multiple output (XL-MIMO) communication system with extremely large-scale antenna arrays can achieve ultra-high spectral efficiency. However, the conventional far-field beam codebooks may be mismatched with the near-field spherical-wavefront channel caused by large array aperture, which results in severe performance loss. To address this problem, we develop a criterion of codebook design to maximize the worst-case beam gain within the beam coverage. Then, a closed-form expression of the near-field full dimensional (FD) codebook with non-orthogonal structure is derived, which can realize the spatial oversampling regardless of the number of antennas at the transceiver. Simulation results show that our proposed non-orthogonal codebook can potentially improve the accuracy of near-field beam training, compared with existing codebooks
合写作者：Cuiling Li,Yong Zeng,Caihong Kai,Shiwen He
第一作者：Wei Huang
论文类型：论文集
学科门类：工学
文献类型：C
页面范围：4902-4908
是否译文：否
发表时间：2023-12-04
收录刊物：EI