星地高速移动场景OTFS性能研究

李天时; 何睿斯; 艾渤; 杨汨; 钟章队; 张浩翔

doi:10.1631/FITEE.2000468

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星地高速移动场景OTFS性能研究

高通量毫米波无线通信专辑 | Updated：2022-05-19

- 星地高速移动场景OTFS性能研究
  Enhanced Publication
- OTFS modulation performance in a satellite-to-ground channel at sub-6-GHz and millimeter-wave bands with high mobility
- 信息与电子工程前沿（英文） 2021年22卷第4期页码：517-526
- Affiliations：
  
  State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China
  China Academy of Industrial Internet, Ministry of Industry and Information Technology, Beijing 100804, China
- Author bio：
  
  [ "Tianshi LI, E-mail: 19125026@bjtu.edu.cn" ]
  [ "Ruisi HE, E-mail: ruisi.he@bjtu.edu.cn" ]
  [ "Bo AI, E-mail: boai@bjtu.edu.cn" ]
  [ "Mi YANG, E-mail: 17111030@bjtu.edu.cn" ]
  [ "Zhangdui ZHONG, E-mail: zhdzhong@bjtu.edu.cn" ]
  [ "Haoxiang ZHANG, E-mail: zhx61778294@126.com" ]
- Funds：
  
  Project supported by the National Key R&D Program of China (No. 2020YFB1806903), the National Natural Science Foundation of China (Nos. 61922012, 62001519, 52042201, U1834210, and 61961130391), the State Key Laboratory of Rail Traffic Control and Safety, China (Nos. RCS2020ZT008, RCS2019ZZ007, and RCS2020ZT010), the Teaching Reform Project, China (No. 134811522), and the Fundamental Research Funds for the Central Universities, China (Nos. 2020JBZD005 and I20JB0200030)
- DOI：10.1631/FITEE.2000468
  中图分类号： TN92
- 纸质出版日期：2021-04，
  
  收稿日期：2020-09-10，
  
  修回日期：2021-02-04，
- Accepted：
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李天时, 何睿斯, 艾渤, 等. 星地高速移动场景OTFS性能研究[J]. 信息与电子工程前沿（英文）, 2021,22(4):517-526.

TIANSHI LI, RUISI HE, BO AI, et al. OTFS modulation performance in a satellite-to-ground channel at sub-6-GHz and millimeter-wave bands with high mobility. [J]. Frontiers of information technology & electronic engineering, 2021, 22(4): 517-526.
李天时, 何睿斯, 艾渤, 等. 星地高速移动场景OTFS性能研究[J]. 信息与电子工程前沿（英文）, 2021,22(4):517-526. DOI： 10.1631/FITEE.2000468.

TIANSHI LI, RUISI HE, BO AI, et al. OTFS modulation performance in a satellite-to-ground channel at sub-6-GHz and millimeter-wave bands with high mobility. [J]. Frontiers of information technology & electronic engineering, 2021, 22(4): 517-526. DOI： 10.1631/FITEE.2000468.

摘要

Abstract

Orthogonal time frequency space (OTFS) modulation has been widely considered for high-mobility scenarios. Satellite-to-ground communications have recently received much attention as a typical high-mobility scenario and face great challenges due to the high Doppler shift. To enable reliable communications and high spectral efficiency in satellite mobile communications

we evaluate OTFS modulation performance for geostationary Earth orbit and low Earth orbit satellite-to-ground channels at sub-6-GHz and millimeter-wave bands in both line-of-sight and non-line-of-sight cases. The minimum mean squared error with successive detection (MMSE-SD) is used to improve the bit error rate performance. The adaptability of OTFS and the signal detection technologies in satellite-to-ground channels are analyzed. Simulation results confirm the feasibility of applying OTFS modulation to satellite-to-ground communications with high mobility. Because full diversity in the delay-Doppler domain can be explored

different terminal movement velocities do not have a significant impact on the performance of OTFS modulation

and OTFS modulation can achieve better performance compared with classical orthogonal frequency division multiplexing in satellite-to-ground channels. It is found that MMSE-SD can improve the performance of OTFS modulation compared with an MMSE equalizer.

关键词

Keywords

Delay-Doppler channelHigh-mobility communicationsMinimum mean squared error with successive detection (MMSE-SD)Orthogonal time frequency space (OTFS)Satellite-to-ground communicationsMillimeter-wave communications

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