Near Optimal Hybrid Digital-Analog Beamforming for Point-to-Point MIMO-OTFS Transmissions

被引:1
|
作者
Liu, Mengmeng [1 ,2 ]
Li, Shuangyang [3 ]
Wei, Zhiqiang [4 ]
Bai, Baoming [1 ]
机构
[1] Xidian Univ, State Key Lab ISN, Xian, Peoples R China
[2] Sci & Technol Commun Networks Lab, Shijiazhuang, Hebei, Peoples R China
[3] Univ Western Australia, Perth, WA, Australia
[4] Xi An Jiao Tong Univ, Xian, Peoples R China
来源
2023 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE, WCNC | 2023年
基金
国家重点研发计划; 中国国家自然科学基金;
关键词
MIMO; OTFS; precoding; achievable rate; FREQUENCY SPACE MODULATION;
D O I
10.1109/WCNC55385.2023.10118648
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
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.
引用
收藏
页数:6
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