An Fluid Antenna Array-Enabled DOA Estimation Method: End-Fire Effect Suppression
Fuente:
arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
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| _version_ | 1866917162793304064 |
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| author | Ren, Jiaji Tian, Ye Liu, Baiyang Wu, Tuo Liu, Wei Wong, Kai-Kit Tong, Kin-Fai Luk, Kwai-Man |
| author_facet | Ren, Jiaji Tian, Ye Liu, Baiyang Wu, Tuo Liu, Wei Wong, Kai-Kit Tong, Kin-Fai Luk, Kwai-Man |
| contents | Direction of Arrival (DOA) estimation serves as a critical sensing technology poised to play a vital role in future intelligent and ubiquitous communication systems. Despite the development of numerous mature super-resolution algorithms, the inherent end-fire effect problem in fixed antenna arrays remains inadequately addressed. This work proposed a novel array architecture composed of fluid antennas. By exploiting the spatial reconfigurability of their positions to equivalently modulate the array steering vector and integrating it with the classical MUSIC algorithm, this approach achieved high-precision DOA estimation. Simulation results demonstrated that the proposed method delivers outstanding estimation performance even in highly challenging end-fire regions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_18981 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | An Fluid Antenna Array-Enabled DOA Estimation Method: End-Fire Effect Suppression Ren, Jiaji Tian, Ye Liu, Baiyang Wu, Tuo Liu, Wei Wong, Kai-Kit Tong, Kin-Fai Luk, Kwai-Man Signal Processing Direction of Arrival (DOA) estimation serves as a critical sensing technology poised to play a vital role in future intelligent and ubiquitous communication systems. Despite the development of numerous mature super-resolution algorithms, the inherent end-fire effect problem in fixed antenna arrays remains inadequately addressed. This work proposed a novel array architecture composed of fluid antennas. By exploiting the spatial reconfigurability of their positions to equivalently modulate the array steering vector and integrating it with the classical MUSIC algorithm, this approach achieved high-precision DOA estimation. Simulation results demonstrated that the proposed method delivers outstanding estimation performance even in highly challenging end-fire regions. |
| title | An Fluid Antenna Array-Enabled DOA Estimation Method: End-Fire Effect Suppression |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2512.18981 |