Machine Learning (ML)-assisted Beam Management in millimeter (mm)Wave Distributed Multiple Input Multiple Output (D-MIMO) systems

Fuente: arXiv
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Autores principales: M, Karthik R, Hegde, Dhiraj Nagaraja, Sarajlic, Muris, Sarkar, Abhishek
Formato: Preprint
Publicado: 2023
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author M, Karthik R
Hegde, Dhiraj Nagaraja
Sarajlic, Muris
Sarkar, Abhishek
author_facet M, Karthik R
Hegde, Dhiraj Nagaraja
Sarajlic, Muris
Sarkar, Abhishek
contents Beam management (BM) protocols are critical for establishing and maintaining connectivity between network radio nodes and User Equipments (UEs). In Distributed Multiple Input Multiple Output systems (D-MIMO), a number of access points (APs), coordinated by a central processing unit (CPU), serves a number of UEs. At mmWave frequencies, the problem of finding the best AP and beam to serve the UEs is challenging due to a large number of beams that need to be sounded with Downlink (DL) reference signals. The objective of this paper is to investigate whether the best AP/beam can be reliably inferred from sounding only a small subset of beams and leveraging AI/ML for inference of best beam/AP. We use Random Forest (RF), MissForest (MF) and conditional Generative Adversarial Networks (c-GAN) for demonstrating the performance benefits of inference.
format Preprint
id arxiv_https___arxiv_org_abs_2401_05422
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Machine Learning (ML)-assisted Beam Management in millimeter (mm)Wave Distributed Multiple Input Multiple Output (D-MIMO) systems
M, Karthik R
Hegde, Dhiraj Nagaraja
Sarajlic, Muris
Sarkar, Abhishek
Signal Processing
Artificial Intelligence
Beam management (BM) protocols are critical for establishing and maintaining connectivity between network radio nodes and User Equipments (UEs). In Distributed Multiple Input Multiple Output systems (D-MIMO), a number of access points (APs), coordinated by a central processing unit (CPU), serves a number of UEs. At mmWave frequencies, the problem of finding the best AP and beam to serve the UEs is challenging due to a large number of beams that need to be sounded with Downlink (DL) reference signals. The objective of this paper is to investigate whether the best AP/beam can be reliably inferred from sounding only a small subset of beams and leveraging AI/ML for inference of best beam/AP. We use Random Forest (RF), MissForest (MF) and conditional Generative Adversarial Networks (c-GAN) for demonstrating the performance benefits of inference.
title Machine Learning (ML)-assisted Beam Management in millimeter (mm)Wave Distributed Multiple Input Multiple Output (D-MIMO) systems
topic Signal Processing
Artificial Intelligence
url https://arxiv.org/abs/2401.05422