Compressed-Sensing based Beam Detection in 5G NR Initial Access

05/02/2020
by   Junmo Sung, et al.
0

To support millimeter wave (mmWave) frequency bands in cellular communications, both the base station and the mobile platform utilize large antenna arrays to steer narrow beams towards each other to compensate the path loss and improve communication performance. The time-frequency resource allocated for initial access, however, is limited, which gives rise to need for efficient approaches for beam detection. For hybrid analog-digital beamforming (HB) architectures, which are used to reduce power consumption, we propose a compressed sensing (CS) based approach for 5G initial access beam detection that is for a HB architecture and that is compliant with the 3GPP standard. The CS-based approach is compared with the exhaustive search in terms of beam detection accuracy and by simulation is shown to outperform. Up to 256 antennas are considered, and the importance of a careful codebook design is reaffirmed.

READ FULL TEXT
research
09/21/2019

Versatile Compressive mmWave Hybrid Beamformer Codebook Design Framework

Hybrid beamforming (HB) architectures are attractive for wireless commun...
research
09/21/2019

Hybrid Beamformer Codebook Design and Ordering for Compressive mmWave Channel Estimation

In millimeter wave (mmWave) communication systems, beamforming with larg...
research
05/02/2022

Initial Access for Millimeter-Wave and Terahertz Communications with Hybrid Beamforming

In order to achieve terabits-per-second (Tbps) data rates in the sixth-g...
research
02/25/2020

Learning Beam Codebooks with Neural Networks: Towards Environment-Aware mmWave MIMO

Scaling the number of antennas up is a key characteristic of current and...
research
06/06/2018

Swift-Link: A compressive beam alignment algorithm for practical mmWave radios

Next generation wireless networks will exploit the large amount of spect...
research
07/21/2020

Graph-based Model for Beam Management in Mmwave Vehicular Networks

Mmwave bands are being widely touted as a very promising option for futu...
research
09/14/2022

Efficient Beam Search for Initial Access Using Collaborative Filtering

Beamforming-capable antenna arrays overcome the high free-space path los...

Please sign up or login with your details

Forgot password? Click here to reset