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Performance Analysis on Machine Learning-Based Channel Estimation
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DOI：10.1109/TCOMM.2021.3083597.png)
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摘要
En 中文
Recently, machine learning-based channel estimation has attracted much attention. The performance of machine learning-based estimation has been validated by simulation experiments. However, little attention has been paid to the theoretical performance analysis. In this paper, we investigate the mean square error (MSE) performance of machine learning-based estimation. Hypothesis testing is employed to analyze its MSE upper bound. Furthermore, we build a statistical model for hypothesis testing, which holds when the linear learning module with a low input dimension is used in machine learning-based channel estimation, and derive a clear analytical relation between the size of the training data and performance. Then, we simulate the machine learning-based channel estimation in orthogonal frequency division multiplexing (OFDM) systems to verify our analysis results. Finally, the design considerations for the situation where only limited training data is available are discussed. In this situation, our analysis results can be applied to assess the performance and support the design of machine learning-based channel estimation.
Keyword:
Channel estimation
Estimation
Training
Channel models
Performance analysis
Training data
Testing
Channel estimation
performance analysis
MSE
machine learning
OFDM
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期刊
IF:
8.3
论文数:
1.2W
被引数:
3.6W
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Robust channel estimation for OFDM systems with rapid dispersive fading channels具有快速色散衰落信道的OFDM系统的鲁棒信道估计
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