多用户OTFS系统中的协同双Leo卫星传输

2023 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW) Pub Date : 2023-06-04 DOI:10.1109/ICASSPW59220.2023.10193019

Màrius Caus, M. Shaat, A. Pérez-Neira, M. Schellmann, Hanwen Cao

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引用次数: 0

摘要

本文探讨了多卫星传输方案。重点是多用户下行场景，其中两个低地球轨道卫星协同传输数据，然后在每个地面用户终端上进行组合。在接收端采用单同步电路以减少终端负担。利用正交时频空间(OTFS)波形处理剩余偏移量，并在非重叠延迟多普勒资源上调度用户。本文利用OTFS、波束中心补偿和卫星信道的特性来消除用户间干扰。数值结果评估了所提出方案的有效性，并突出了与单卫星传输相比，通过卫星合作实现的性能改进。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Cooperative Dual Leo Satellite Transmission in Multi-User OTFS Systems

This paper explores multi-satellite transmission schemes. The focus is on the multi-user downlink scenario, where two low Earth orbit satellites transmit data cooperatively, which are then combined at each of the ground user terminals. A single synchronization circuit is employed at the receiver to reduce the terminal burden. The orthogonal time and frequency space (OTFS) waveform is utilized to handle the residual offsets and schedule users on non-overlapping delay-Doppler resources. The paper leverages on OTFS, beam-centric compensation and the characteristics of the satellite channel to eliminate inter-user interference. Numerical results assess the effectiveness of the proposed scheme and highlight the improvement in performance achieved through satellite cooperation as compared to single satellite transmission.

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2023 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW)

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