Deep Learning Based Antenna-time Domain Channel Extrapolation for Hybrid mmWave Massive MIMO

no code implementations • 9 Aug 2021 • Shunbo Zhang, Shun Zhang, Jianpeng Ma, Tian Liu, Octavia A. Dobre

We design a latent ordinary differential equation (ODE)-based network under the variational auto-encoder (VAE) framework to learn the mapping function from the partial uplink channels to the full downlink ones at the BS side.

Decoder

Deep Learning Based RIS Channel Extrapolation with Element-grouping

no code implementations • 14 May 2021 • Shunbo Zhang, Shun Zhang, Feifei Gao, Jianpeng Ma, Octavia A. Dobre

Reconfigurable intelligent surface (RIS) is considered as a revolutionary technology for future wireless communication networks.

Deep Learning Optimized Sparse Antenna Activation for Reconfigurable Intelligent Surface Assisted Communication

no code implementations • 3 Sep 2020 • Shunbo Zhang, Shun Zhang, Feifei Gao, Jianpeng Ma, Octavia A. Dobre

In this paper, we add signal processing units for a few antennas at RIS to partially acquire the channels.