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arXiv 2110.07992eess.SPcs.LG
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BayesAoA:一种计算效率高的到达角估计贝叶斯方法

BayesAoA: A Bayesian method for Computation Efficient Angle of Arrival Estimation

Indian Institute of Technology Madras(马德拉斯印度理工学院)

Akshay Sharma, Nancy Nayak, Sheetal Kalyani

摘要:

到达角(AoA)估计在现代通信系统中具有重要意义。传统的基于最大似然的迭代算法对初始化敏感,不能在线使用。我们提出了一个贝叶斯方法来找到AoA是不敏感的初始化。与传统的基于深度学习的方法相比,所提出的方法不那么复杂,需要的计算资源也更少。它比暴力算法有更快的收敛速度。此外,提出了一种对冲型解决方案,有助于在线部署该方法,以处理接收机中的信道噪声和天线配置随时间变化的情况。该方法在噪声方差为$10^{-6}$的信道中实现了$92\%$的精度,与$19.3\%$的蛮力法的计算结果一致。

英文摘要:

The angle of Arrival (AoA) estimation is of great interest in modern communication systems. Traditional maximum likelihood-based iterative algorithms are sensitive to initialization and cannot be used online. We propose a Bayesian method to find AoA that is insensitive towards initialization. The proposed method is less complex and needs fewer computing resources than traditional deep learning-based methods. It has a faster convergence than the brute-force methods. Further, a Hedge type solution is proposed that helps to deploy the method online to handle the situations where the channel noise and antenna configuration in the receiver change over time. The proposed method achieves $92\%$ accuracy in a channel of noise variance $10^{-6}$ with $19.3\%$ of the brute-force method's computation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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