In conventional supervised deep learning based channel estimation algorithms, a large number of training samples are required for offline training. However, in practical communication systems, it is difficult to obtain channel samples for every signal-to-noise ratio (SNR). Furthermore, the generalization ability of these deep neural networks (DNN) is typically poor. In this work, we propose a one-shot self-supervised learning framework for channel estimation in multi-input multi-output (MIMO) systems. The required number of samples for offline training is small and our approach can be directly deployed to adapt to variable channels. Our framework consists of a traditional channel estimation module and a denoising module. The denoising module is designed based on the one-shot learning method Self2Self and employs Bernoulli sampling to generate training labels. Besides,we further utilize a blind spot strategy and dropout technique to avoid overfitting. Simulation results show that the performance of the proposed one-shot self-supervised learning method is very close to the supervised learning approach while obtaining improved generalization ability for different channel environments.


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    Title :

    One-shot Learning for Channel Estimation in Massive MIMO Systems


    Contributors:
    Kang, Kai (author) / Hu, Qiyu (author) / Cai, Yunlong (author) / Eldar, Yonina C. (author)


    Publication date :

    2023-06-01


    Size :

    979402 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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