Web: http://arxiv.org/abs/2209.07350

Sept. 16, 2022, 1:12 a.m. | Matteo Nerini, Bruno Clerckx

cs.LG updates on arXiv.org arxiv.org

In this letter, we address blockage detection and precoder design for
multiple-input multiple-output (MIMO) links, without communication overhead
required. Blockage detection is achieved by classifying light detection and
ranging (LIDAR) data through a physics-based graph neural network (GNN). For
precoder design, a preliminary channel estimate is obtained by running ray
tracing on a 3D surface obtained from LIDAR data. This estimate is successively
refined and the precoder is designed accordingly. Numerical simulations show
that blockage detection is successful with 95% …

arxiv data detection free graph graph neural networks lidar networks neural networks physics ray tracing

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