Optimizing the mmWave Channel Estimation Duration by Rate Prediction
Journal article, 2021
In millimeter-wave (mmWave) wireless communications, the duration of the channel estimation plays a major role to establish the links before data transmission. However, fixed or long channel estimation can substantially hinder the achievable transmit data rates. In this letter, we propose a new scheme that optimizes the channel estimation duration to establish the link between the base station (BS) and a mobile station (MS) in mmWave communications. Before pilot transmissions, the BS predicts the downlink effective rate that would be achieved after channel estimation with the pilot precoder and compares this predicted rate with the current rate, based on the current channel estimates. The proposed scheme optimizes the mmWave channel estimation duration by ending pilot transmissions when the predicted rate is lower than the current rate.
MIMO
rate prediction
Downlink
Channel estimation duration
Radio frequency
Data communication
Electronic mail
mmWave
Training
Channel estimation
CRB
Covariance matrices
Author
Jeongwan Kang
Hanyang University
Nil Garcia
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Henk Wymeersch
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Carlo Fischione
Royal Institute of Technology (KTH)
Gonzalo Seco-Granados
Universitat Autonoma de Barcelona (UAB)
Sunwoo Kim
Hanyang University
IEEE Communications Letters
1089-7798 (ISSN) 15582558 (eISSN)
Vol. 25 2 555-559 9214890Multidimensional coherent communications with microcombs
Swedish Research Council (VR) (2020-00453), 2020-12-01 -- 2026-11-30.
Areas of Advance
Information and Communication Technology
Subject Categories
Telecommunications
Communication Systems
Signal Processing
DOI
10.1109/LCOMM.2020.3029107