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Aerial RIS-Assisted Direction Finding Under Doppler Effect Based on Atomic Norm Minimization
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DOI：10.1109/TVT.2023.3328800.png)
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摘要
En 中文
The integration of reconfigurable intelligent surface (RIS) into aerial platforms is crucial for seamless coverage in future wireless communication systems. However, to fully harness the potential benefits of aerial RIS-assisted networks, accurate knowledge of the RIS location, particularly for millimeter-wave (mmWave) frequencies, is essential. This paper addresses aerial RIS-assisted direction finding in the presence of Doppler shifts. By employing block-wise processing, we formulate reduced-dimension optimization subproblems in the vertical and horizontal directions. Leveraging the sparsity of mmWave channels, we propose an efficient direction finding algorithm based on atomic norm minimization. We analyze the performance of the proposed algorithm in comparison to existing methods, considering training overhead and computational complexity.
Keyword:
Direction finding
reconfigurable intelligent surface (RIS)
millimeter-wave (mmWave)
atomic norm minimization
期刊
IF:
7.1
论文数:
1.8W
被引数:
6.6W
机构
引用论文
Channel Estimation for RIS-Aided mmWave MIMO Systems via Atomic Norm Minimization基于原子范数最小化的RIS辅助毫米波MIMO系统信道估计
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OAAI分享收藏Efficient two-dimensional line spectrum estimation based on decoupled atomic norm minimization基于解耦原子范数最小化的高效二维线谱估计.png)
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SIGNAL PROCESSINGIF3.6
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