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- W2894071523 abstract "In this letter, we propose to identify line-of-sight (LOS) and non-line-of-sight (NLOS) conditions based on a convolutional neural network (CNN) in urban 3-D massive MIMO systems. The proposed method includes two parts. In the first part, given that the paths spread differently in time domain, we combine the normalized tap energy distribution on each antenna utilizing sounding reference signals and construct the coordinated tap energy matrix. In the second part, we train a CNN to analyze the matrix and identify the LOS/NLOS conditions. A 3-D massive MIMO channel model is considered in our simulation. Results show that error rates of the worst performance using proposed identification algorithm are lower than 2.4%, and a remarkable improvement is achieved compared with schemes that exploit the space–time–frequency channel correlation features." @default.
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- W2894071523 date "2018-12-01" @default.
- W2894071523 modified "2023-10-16" @default.
- W2894071523 title "CNN-Based LOS/NLOS Identification in 3-D Massive MIMO Systems" @default.
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- W2894071523 doi "https://doi.org/10.1109/lcomm.2018.2872522" @default.
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