OTFS modulation performance in a satellite-to-ground channel at sub-6-GHz and millimeter-wave bands with high mobility

Tianshi LI; Ruisi HE; Bo AI; Mi YANG; Zhangdui ZHONG; Haoxiang ZHANG

doi:10.1631/FITEE.2000468

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OTFS modulation performance in a satellite-to-ground channel at sub-6-GHz and millimeter-wave bands with high mobility

Special Issue on High-Throughput Millimeter-Wave Wireless Communications | Updated：2022-05-19

- OTFS modulation performance in a satellite-to-ground channel at sub-6-GHz and millimeter-wave bands with high mobility
- 星地高速移动场景OTFS性能研究
- Frontiers of Information Technology & Electronic Engineering Vol. 22, Issue 4, Pages: 517-526(2021)
- 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：
- DOI：10.1631/FITEE.2000468
  CLC： TN92
- Received：10 September 2020，
  
  Revised：2021-;2-;4，
  
  Published：2021-04
- Accepted：
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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：

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

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