Low-Complexity Downlink Channel Estimation in mmWave Multiple-Input Single-Output Systems
Journal article, 2022
This paper tackles the problem of channel estimation in mmWave multiple-input single-output systems, where users are equipped with single-antenna receivers. By leveraging broadcast transmissions in the downlink channel, two novel low-complexity estimation approaches are devised, able to operate even in presence of a reduced number of transmit antennas or limited bandwidth. Numerical results show that the proposed algorithms provide accurate estimates of the channel parameters, achieving at the same time about 50% complexity reduction compared to existing approaches.
mmWave
Frequency estimation
MISO communication
MIMO
5G
Channel estimation
OFDM
channel estimation
downlink
cellular networks.
MISO
Unified modeling language
Estimation
Delays
Author
Alessio Fascista
University of Salento
Alessandro De Monte
University of Salento
Angelo Coluccia
University of Salento
Henk Wymeersch
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
G. Seco-Granados
Universitat Autonoma de Barcelona (UAB)
IEEE Wireless Communications Letters
2162-2337 (ISSN) 2162-2345 (eISSN)
Vol. 11 3 518-522Areas of Advance
Information and Communication Technology
Subject Categories
Telecommunications
Communication Systems
Signal Processing
DOI
10.1109/LWC.2021.3134826