University of Oulu

A. O. Laiyemo, P. Luoto, P. Pirinen and M. Latva-aho, "Higher frequency band beamforming scheme for high speed train," 2017 IEEE Vehicular Networking Conference (VNC), Torino, 2017, pp. 203-208. doi: 10.1109/VNC.2017.8275605

Higher frequency band beamforming scheme for high speed train

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Author: Laiyemo, Ayotunde O.1; Luoto, Petri1; Pirinen, Pekka1;
Organizations: 1Centre for Wireless Communications, University of Oulu, P.O. Box 4500, 90014 University of Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2017
Publish Date: 2018-06-28


With the increasing popularity of high speed trains (HSTs) and the traffic forecast for future cellular networks, the need to provide very high data rates using higher frequency bands (HFBs) for train passengers is becoming crucial. In this paper, we present a timer-based beamforming selection algorithm for HST, which exploits the prior knowledge of the position and direction of the HST. A sequential and hierarchical codebook is designed based on the array response vectors and linked to the line-of-sight (LOS) angle-of-arrival/departure base station (BS)-HST link. The effect of velocity feedback errors on the throughput performance was analyzed. The antenna deactivation and the sub-array approaches were considered to mitigate the effect of velocity feedback errors. Evaluation of our proposed beamforming scheme indicates a close performance to the optimal singular value decomposition (SVD) scheme when no velocity feedback error occurs and with the occurrence of velocity feedback errors, the sub-array approach proved to be an efficient way to reduce the effect of the errors.

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Series: IEEE Vehicular Technology Conference
ISSN: 1550-2252
ISSN-L: 1550-2252
ISBN: 978-1-5386-0986-6
ISBN Print: 978-1-5386-0987-3
Volume: 2017
Pages: 203 - 208
DOI: 10.1109/VNC.2017.8275605
Host publication: Proceedings of the 2017 IEEE Vehicular Networking Conference (VNC), Torino, Italy, Nov 27-29, 2017
Conference: IEEE Vehicular Networking Conference (VNC)
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported by the Finnish Funding Agency for Technology and Innovation, Nokia, Media Tek, Keysight Technologies, Bittium, and Kyynel.
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