CFO and channel estimation schemes for multi-user massive MIMO systems in high mobility environment

Jaehyung Choi; Jae Hong Kwon; Young Chai Ko

doi:10.1109/CSCN.2016.7785180

CFO and channel estimation schemes for multi-user massive MIMO systems in high mobility environment

Jaehyung Choi, Jae Hong Kwon, Young Chai Ko

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

In high mobility environment, the carrier frequency offset (CFO) introduced by Doppler shifts can severely degrade the system performance. On the other hand, orthogonal pilot sequence which is utilized in conventional frame structure for CFO and channel estimation induces large pilot resource consumption as the number of users increases, resulting in low achievable throughput. In this paper, we propose CFO and the uplink channel estimation scheme with semi-orthogonal pilot sequence to improve achievable throughput in multi-user massive multiple-input multiple-output (MIMO) systems. Frame structure with semi-orthogonal pilot sequence is implemented with simultaneous data and pilot sequence. In our proposed scheme, we employ successive interference cancellation (SIC) to distinguish between data and pilot sequence. We demonstrate from simulation results that our proposed estimation scheme can enhance the achievable throughput compared to the conventional one in high mobility situations.

Original language	English
Title of host publication	2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509038626
DOIs	https://doi.org/10.1109/CSCN.2016.7785180
Publication status	Published - 2016 Dec 15
Event	2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016 - Berlin, Germany Duration: 2016 Oct 31 → 2016 Nov 2

Publication series

Name	2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016

Other

Other	2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016
Country/Territory	Germany
City	Berlin
Period	16/10/31 → 16/11/2

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

Keywords

achievable throughput
carrier frequency offset
high mobility environment
massive MIMO systems
semi-orthogonal pilot

ASJC Scopus subject areas

Computer Networks and Communications
Safety, Risk, Reliability and Quality

Access to Document

10.1109/CSCN.2016.7785180

Cite this

Choi, J., Kwon, J. H., & Ko, Y. C. (2016). CFO and channel estimation schemes for multi-user massive MIMO systems in high mobility environment. In 2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016 Article 7785180 (2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CSCN.2016.7785180

CFO and channel estimation schemes for multi-user massive MIMO systems in high mobility environment. / Choi, Jaehyung; Kwon, Jae Hong; Ko, Young Chai.
2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016. Institute of Electrical and Electronics Engineers Inc., 2016. 7785180 (2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Choi, J, Kwon, JH & Ko, YC 2016, CFO and channel estimation schemes for multi-user massive MIMO systems in high mobility environment. in 2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016., 7785180, 2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016, Institute of Electrical and Electronics Engineers Inc., 2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016, Berlin, Germany, 16/10/31. https://doi.org/10.1109/CSCN.2016.7785180

Choi J, Kwon JH, Ko YC. CFO and channel estimation schemes for multi-user massive MIMO systems in high mobility environment. In 2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016. Institute of Electrical and Electronics Engineers Inc. 2016. 7785180. (2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016). doi: 10.1109/CSCN.2016.7785180

Choi, Jaehyung ; Kwon, Jae Hong ; Ko, Young Chai. / CFO and channel estimation schemes for multi-user massive MIMO systems in high mobility environment. 2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016. Institute of Electrical and Electronics Engineers Inc., 2016. (2016 IEEE Conference on Standards for Communications and Networking, CSCN 2016).

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abstract = "In high mobility environment, the carrier frequency offset (CFO) introduced by Doppler shifts can severely degrade the system performance. On the other hand, orthogonal pilot sequence which is utilized in conventional frame structure for CFO and channel estimation induces large pilot resource consumption as the number of users increases, resulting in low achievable throughput. In this paper, we propose CFO and the uplink channel estimation scheme with semi-orthogonal pilot sequence to improve achievable throughput in multi-user massive multiple-input multiple-output (MIMO) systems. Frame structure with semi-orthogonal pilot sequence is implemented with simultaneous data and pilot sequence. In our proposed scheme, we employ successive interference cancellation (SIC) to distinguish between data and pilot sequence. We demonstrate from simulation results that our proposed estimation scheme can enhance the achievable throughput compared to the conventional one in high mobility situations.",

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N2 - In high mobility environment, the carrier frequency offset (CFO) introduced by Doppler shifts can severely degrade the system performance. On the other hand, orthogonal pilot sequence which is utilized in conventional frame structure for CFO and channel estimation induces large pilot resource consumption as the number of users increases, resulting in low achievable throughput. In this paper, we propose CFO and the uplink channel estimation scheme with semi-orthogonal pilot sequence to improve achievable throughput in multi-user massive multiple-input multiple-output (MIMO) systems. Frame structure with semi-orthogonal pilot sequence is implemented with simultaneous data and pilot sequence. In our proposed scheme, we employ successive interference cancellation (SIC) to distinguish between data and pilot sequence. We demonstrate from simulation results that our proposed estimation scheme can enhance the achievable throughput compared to the conventional one in high mobility situations.

AB - In high mobility environment, the carrier frequency offset (CFO) introduced by Doppler shifts can severely degrade the system performance. On the other hand, orthogonal pilot sequence which is utilized in conventional frame structure for CFO and channel estimation induces large pilot resource consumption as the number of users increases, resulting in low achievable throughput. In this paper, we propose CFO and the uplink channel estimation scheme with semi-orthogonal pilot sequence to improve achievable throughput in multi-user massive multiple-input multiple-output (MIMO) systems. Frame structure with semi-orthogonal pilot sequence is implemented with simultaneous data and pilot sequence. In our proposed scheme, we employ successive interference cancellation (SIC) to distinguish between data and pilot sequence. We demonstrate from simulation results that our proposed estimation scheme can enhance the achievable throughput compared to the conventional one in high mobility situations.

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CFO and channel estimation schemes for multi-user massive MIMO systems in high mobility environment

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Keywords

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