Extended Kalman Filter Beam Tracking for Millimeter Wave Vehicular Communications

Millimeter-wave (mmWave) communication is a promising technology to meet the ever-growing data traffic of vehicular communications. Unfortunately, more frequent channel estimations are required in this spectrum due to the narrow beams employed to compensate for the high path loss. Hence, the develop...

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Bibliographic Details
Published in:arXiv.org 2019-11
Main Authors: Shaham, Sina, Kokshoorn, Matthew, Ding, Ming, Lin, Zihuai, Shirvanimoghaddam, Mahyar
Format: Article
Language:English
Subjects:
Algorithms
Beams (radiation)
Changing environments
Communications traffic
Extended Kalman filter
Jacobi matrix method
Jacobian matrix
Millimeter waves
State variable
Tracking
Online Access:Get full text
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Summary:Millimeter-wave (mmWave) communication is a promising technology to meet the ever-growing data traffic of vehicular communications. Unfortunately, more frequent channel estimations are required in this spectrum due to the narrow beams employed to compensate for the high path loss. Hence, the development of highly efficient beam tracking algorithms is essential to enable the technology, particularly for fast-changing environments in vehicular communications. In this paper, we propose an innovative scheme for beam tracking based on the Extended Kalman Filter (EKF), improving the mean square error performance by 49% in vehicular settings. We propose to use the position, velocity, and channel coefficient as state variables of the EKF algorithm and show that such an approach results in improved beam tracking with low computational complexity by taking the kinematic characteristics of the system into account. We also explicitly derive the closed-from expressions for the Jacobian matrix of the EKF algorithm.
ISSN:2331-8422