Data-Interference Free and Low-Overhead Channel Estimation Framework for MIMO-OTFS System
文献类型：期刊论文
| 作者 | Meng, Ziyang1,2,3; Zhang, Yu1,2,3; Zhou, Yiqing1,2,3; Shi, Jinglin1,2,3 |
| 刊名 | IEEE COMMUNICATIONS LETTERS
 |
| 出版日期 | 2025-09-01 |
| 卷号 | 29期号:9页码:2143-2147 |
| 关键词 | Channel estimation Symbols MIMO Interference Vectors Estimation Delays Accuracy Transforms Time-domain analysis MIMO-OTFS channel estimation basis expansion model pilot pattern low overhead |
| ISSN号 | 1089-7798 |
| DOI | 10.1109/LCOMM.2025.3588110 |
| 英文摘要 | In MIMO-OTFS systems, accurate CSI estimation with minimal pilot overhead is crucial. While guard-interval (GI)-based pilot patterns suppress data interference, they substantially increase overhead. To overcome this, we propose an interference-free, low-overhead channel estimation framework that exploits channel sparsity. Specifically, we introduce the delay-Doppler-angle basis expansion model (DDA-BEM) to reformulate the estimation task as a compressed sensing problem. Leveraging the sparsity in the DDA domain, we design a pilot pattern that inherently avoids data interference without requiring GIs. Simulation results demonstrate a 54% reduction in pilot overhead compared to state-of-the-art methods, while maintaining comparable estimation accuracy. |
| 资助项目 | Natural Science Foundation of China[U21A20449] |
| WOS研究方向 | Telecommunications |
| 语种 | 英语 |
| WOS记录号 | WOS:001576061400016 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 源URL | [http://119.78.100.204/handle/2XEOYT63/41690]  |
| 专题 | 中国科学院计算技术研究所期刊论文_英文 |
| 通讯作者 | Zhou, Yiqing |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Comp Technol, State Key Lab Processors, Beijing 100190, Peoples R China 3.Beijing Key Lab Mobile Comp & Pervas Device, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Ziyang,Zhang, Yu,Zhou, Yiqing,et al. Data-Interference Free and Low-Overhead Channel Estimation Framework for MIMO-OTFS System[J]. IEEE COMMUNICATIONS LETTERS,2025,29(9):2143-2147. |
| APA | Meng, Ziyang,Zhang, Yu,Zhou, Yiqing,&Shi, Jinglin.(2025).Data-Interference Free and Low-Overhead Channel Estimation Framework for MIMO-OTFS System.IEEE COMMUNICATIONS LETTERS,29(9),2143-2147. |
| MLA | Meng, Ziyang,et al."Data-Interference Free and Low-Overhead Channel Estimation Framework for MIMO-OTFS System".IEEE COMMUNICATIONS LETTERS 29.9(2025):2143-2147. |
入库方式： OAI收割
来源：计算技术研究所
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