TransMAP: A MAP-Inspired Transformer-Based Detector for OTFS Under Imperfect CSI
文献类型：期刊论文
| 作者 | Shi, Haiwei1,2,3; Yu, Hanxiao1,2,3; Zhou, Yiqing1,2,3; Shi, Jinglin1,2,3; Zhou, Shuo1,2,3 |
| 刊名 | IEEE WIRELESS COMMUNICATIONS LETTERS
 |
| 出版日期 | 2026 |
| 卷号 | 15页码:275-279 |
| 关键词 | Symbols Detectors Transformers Signal detection OFDM Encoding Attention mechanisms Accuracy Vectors Channel estimation OTFS transformer MAP detection imperfect CSI attention mechanism |
| ISSN号 | 2162-2337 |
| DOI | 10.1109/LWC.2025.3622240 |
| 英文摘要 | As a promising alternative to orthogonal frequency division multiplexing (OFDM) in high-mobility scenarios, orthogonal time frequency space (OTFS) modulation still remains a significant challenge in signal detection due to the inherent complexity of delay-Doppler domain operations. Developing efficient detection algorithms has therefore become a key research focus for OTFS. Furthermore, imperfect channel state information (CSI) frequently arises during the OTFS channel estimation, further degrading the detection performance. To address these issues, this letter proposes TransMAP, a Transformer-based OTFS detector, which integrates a symbol embedding module guided by the maximum a posteriori (MAP) criterion to explicitly model symbol-channel relationships. By leveraging attention mechanisms and SE module, TransMAP enhances the robustness to channel estimation errors in OTFS signal detection. Extensive experiments demonstrate its superior detection accuracy compared to conventional and deep learning-based OTFS detectors. |
| 资助项目 | National Natural Science Foundation of China[U21A20449] ; National Natural Science Foundation of China[62201052] ; Zhongguancun Science City Jiebang Guashuai Project[23120035] |
| WOS研究方向 | Computer Science ; Engineering ; Telecommunications |
| 语种 | 英语 |
| WOS记录号 | WOS:001644546300018 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 源URL | [http://119.78.100.204/handle/2XEOYT63/42965]  |
| 专题 | 中国科学院计算技术研究所 |
| 通讯作者 | Yu, Hanxiao |
| 作者单位 | 1.Chinese Acad Sci, Beijing Key Lab Mobile Comp & Pervas Device, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Comp Technol, State Key Lab Processors, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Inst Comp Technol, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Haiwei,Yu, Hanxiao,Zhou, Yiqing,et al. TransMAP: A MAP-Inspired Transformer-Based Detector for OTFS Under Imperfect CSI[J]. IEEE WIRELESS COMMUNICATIONS LETTERS,2026,15:275-279. |
| APA | Shi, Haiwei,Yu, Hanxiao,Zhou, Yiqing,Shi, Jinglin,&Zhou, Shuo.(2026).TransMAP: A MAP-Inspired Transformer-Based Detector for OTFS Under Imperfect CSI.IEEE WIRELESS COMMUNICATIONS LETTERS,15,275-279. |
| MLA | Shi, Haiwei,et al."TransMAP: A MAP-Inspired Transformer-Based Detector for OTFS Under Imperfect CSI".IEEE WIRELESS COMMUNICATIONS LETTERS 15(2026):275-279. |
入库方式： OAI收割
来源：计算技术研究所
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