Fast Accurate Beam and Channel Tracking for Two-dimensional Phased Antenna Arrays

06/29/2019
by   Yu Liu, et al.
0

The sparsity and the severe attenuation of millimeter-wave (mmWave) channel imply that highly directional communication is needed. The narrow beam produced by large array requires accurate alignment, which can be achieved by beam training with large exploration overhead in static scenarios. However, this training expense is prohibitive when serving fast-moving users. In this paper, we focus on accurate two-dimensional (2D) beam and channel tracking problem in mmWave mobile communication. The minimum exploration overhead of 2D tracking is given in theory first. Then the time-varying channels are divided into three cases: Quasi-static Case, Dynamic Case I and Dynamic Case II. We further develop three tracking algorithms corresponding to these three cases. The proposed algorithms have several salient features: (1) fading channel supportive: they can simultaneously track the channel gain and 2D beam direction in fading channel environments; (2) low exploration overhead: they achieve the minimum exploration requirement for 2D tracking; (3) fast tracking speed and high tracking accuracy: in Quasi-static Case and Dynamic Case I, the tracking error is proved to converge to the minimum Cramer-Rao lower bound (CRLB). In Dynamic Case II, our tracking algorithm outperforms existing algorithms with lower tracking error and faster tracking speed in simulation.

READ FULL TEXT

page 7

page 9

page 10

page 12

page 19

page 21

page 25

page 29

research
06/29/2019

Fast Accurate Beam and Channel Tracking for Two-dimensional Phased Antenna Array

The sparsity and the severe attenuation of millimeter-wave (mmWave) chan...
research
02/06/2018

How to Mobilize mmWave: A Joint Beam and Channel Tracking Approach

Maintaining reliable millimeter wave (mmWave) connections to many fast-m...
research
06/26/2018

Super Fast Beam and Channel Tracking in 2D Phased Antenna Arrays

Millimeter wave (mmWave) is an attractive candidate for high-speed mobil...
research
06/26/2018

Joint Beam and Channel Tracking for Two-dimensional Phased Antenna Arrays

Millimeter wave (mmWave) is an attractive candidate for high-speed mobil...
research
05/03/2020

Robust Adaptive Beam Tracking for Mobile Millimetre Wave Communications

Millimetre wave (mmWave) beam tracking is a challenging task because tra...
research
08/05/2022

Continuous Beam Alignment for Mobile MIMO

Millimeter-wave transceivers use large antenna arrays to form narrow hig...
research
09/16/2022

Beam Tracking for Dynamic mmWave Channels: A New Training Beam Sequence Design Approach

In this paper, we develop an efficient training beam sequence design app...

Please sign up or login with your details

Forgot password? Click here to reset