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Localization Optimization Algorithm Based on Phase Noise Compensation
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DOI：10.3390/electronics13244947.png)
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Abstract
En 中文
Phase noise is a consequence of the instability inherent in the operation of oscillators, making it impossible to entirely eliminate. For low-cost internet of things (IoT) devices, this type of noise can be particularly pronounced, posing a challenge in providing high-quality localization services. To tackle this issue, this paper introduces an improved localization algorithm that includes phase noise compensation. The proposed algorithm enhances the direction of arrival (DoA) estimation for each base station by employing the EM-MUSIC method, subsequently forming a non-convex optimization problem based on the mean square error (MSE) of the estimated DoA results. Finally, a closed-form solution is derived through rational assumptions and approximations. Results show that this algorithm effectively minimizes localization errors and achieves accuracy levels within the sub-meter range.
Keywords:
phase noise
direction of arrival (DoA) estimation
localization
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5.0W
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2024 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit)IF0
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