Low Complexity Channel estimation with Neural Network Solutions

• URL: http://arxiv.org/abs/2201.09934v1
• Date: Mon, 24 Jan 2022 19:55:10 GMT
• Title: Low Complexity Channel estimation with Neural Network Solutions
• Authors: Dianxin Luan, John Thompson
• Abstract summary: We deploy a general residual convolutional neural network to achieve channel estimation in a downlink scenario. Compared with other deep learning methods for channel estimation, our results suggest improved mean squared error computation.
• Score: 1.0499453838486013
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Research on machine learning for channel estimation, especially neural network solutions for wireless communications, is attracting significant current interest. This is because conventional methods cannot meet the present demands of the high speed communication. In the paper, we deploy a general residual convolutional neural network to achieve channel estimation for the orthogonal frequency-division multiplexing (OFDM) signals in a downlink scenario. Our method also deploys a simple interpolation layer to replace the transposed convolutional layer used in other networks to reduce the computation cost. The proposed method is more easily adapted to different pilot patterns and packet sizes. Compared with other deep learning methods for channel estimation, our results for 3GPP channel models suggest improved mean squared error performance for our approach.

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