Abstract
This letter presents the first work introducing a deep learning (DL) framework for channel estimation in large intelligent surface (LIS) assisted massive MIMO (multiple-input multiple-output) systems. A twin convolutional neural network (CNN) architecture is designed and it is fed with the received pilot signals to estimate both direct and cascaded channels. In a multi-user scenario, each user has access to the CNN to estimate its own channel. The performance of the proposed DL approach is evaluated and compared with state-of-the-art DL-based techniques and its superior performance is demonstrated.
Original language | English |
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Article number | 9090876 |
Pages (from-to) | 1447-1451 |
Number of pages | 5 |
Journal | IEEE Wireless Communications Letters |
Volume | 9 |
Issue number | 9 |
Early online date | 11 May 2020 |
DOIs | |
Publication status | Published - Sept 2020 |
Keywords
- Deep learning
- channel estimation
- large intelligent surfaces
- massive MIMO