High-performance low-complexity hierarchical frequency synchronization for distributed massive MIMO-OFDMA systems
High-performance low-complexity hierarchical frequency synchronization for distributed massive MIMO-OFDMA systems
We propose a high-performance yet low-complexity hierarchical frequency synchronization scheme for orthogonal frequency-division multiple-access (OFDMA) aided distributed massive multi-input multi-output (MIMO) systems, where multiple carrier frequency offsets (CFOs) have to be estimated in the uplink. To solve this multi-CFO estimation problem efficiently, we classify the active antenna units (AAUs) as the master and the slaves. Then, we split the scheme into two stages. During the first stage the distributed slave AAUs are synchronized with the master AAU, while the user equipment (UE) is synchronized with the closest slave AAU during the second stage. The mean square error (MSE) performance of our scheme is better than that of the representative state-of-the-art baseline schemes, while its computational complexity is substantially lower.
Beyond 5 G, Estimation, Frequency estimation, Frequency synchronization, Massive MIMO, OFDM, OFDMA, Symbols, Synchronization, beyond 5 G, carrier frequency offset (CFO), distributed massive MIMO, estimation, frequency estimation, frequency synchronization, massive MIMO, symbols, synchronization, Beyond 5G
12343-12348
Wang, Xiao-Yang
6f6e5675-af49-4c06-8abf-2a45a9427fb8
Yang, Shaoshi
23650ec4-bcc8-4a2c-b1e7-a30893f52e52
Yuan, Tian-Hao
284da064-8262-49d7-91e1-4555cb417b43
Zhai, Hou-Yu
582a4738-0cd5-4d5f-8103-f685d3460900
Zhang, Jianhua
cb44cf41-d78e-4056-b3d2-f0b1d45cb86b
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
1 September 2023
Wang, Xiao-Yang
6f6e5675-af49-4c06-8abf-2a45a9427fb8
Yang, Shaoshi
23650ec4-bcc8-4a2c-b1e7-a30893f52e52
Yuan, Tian-Hao
284da064-8262-49d7-91e1-4555cb417b43
Zhai, Hou-Yu
582a4738-0cd5-4d5f-8103-f685d3460900
Zhang, Jianhua
cb44cf41-d78e-4056-b3d2-f0b1d45cb86b
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Wang, Xiao-Yang, Yang, Shaoshi, Yuan, Tian-Hao, Zhai, Hou-Yu, Zhang, Jianhua and Hanzo, Lajos
(2023)
High-performance low-complexity hierarchical frequency synchronization for distributed massive MIMO-OFDMA systems.
IEEE Transactions on Vehicular Technology, 72 (9), .
(doi:10.1109/TVT.2023.3263971).
Abstract
We propose a high-performance yet low-complexity hierarchical frequency synchronization scheme for orthogonal frequency-division multiple-access (OFDMA) aided distributed massive multi-input multi-output (MIMO) systems, where multiple carrier frequency offsets (CFOs) have to be estimated in the uplink. To solve this multi-CFO estimation problem efficiently, we classify the active antenna units (AAUs) as the master and the slaves. Then, we split the scheme into two stages. During the first stage the distributed slave AAUs are synchronized with the master AAU, while the user equipment (UE) is synchronized with the closest slave AAU during the second stage. The mean square error (MSE) performance of our scheme is better than that of the representative state-of-the-art baseline schemes, while its computational complexity is substantially lower.
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lajos (6)
- Accepted Manuscript
More information
Accepted/In Press date: 20 March 2023
e-pub ahead of print date: 3 April 2023
Published date: 1 September 2023
Additional Information:
Funding Information:
This work was supported in part by Beijing Municipal Natural Science Foundation under Grants L202012 and Z220004, in part by the Fundamental Research Funds for the Central Universities under Grant 2020RC05, in part by the National Science Fund of China for Distinguished Young Scholars under Grant 61925102, in part by the Engineering and Physical Sciences Research Council under Grants EP/W016605/1 and EP/X01228X/1, and in part by the European Research Council's Advanced Fellow Grant Quant- Com under Grant 789028.
Publisher Copyright:
© 1967-2012 IEEE.
Keywords:
Beyond 5 G, Estimation, Frequency estimation, Frequency synchronization, Massive MIMO, OFDM, OFDMA, Symbols, Synchronization, beyond 5 G, carrier frequency offset (CFO), distributed massive MIMO, estimation, frequency estimation, frequency synchronization, massive MIMO, symbols, synchronization, Beyond 5G
Identifiers
Local EPrints ID: 476788
URI: http://eprints.soton.ac.uk/id/eprint/476788
ISSN: 0018-9545
PURE UUID: ec1fecf3-23bd-44c4-8395-7b475cd47a01
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Date deposited: 16 May 2023 16:35
Last modified: 18 Mar 2024 02:36
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Contributors
Author:
Xiao-Yang Wang
Author:
Shaoshi Yang
Author:
Tian-Hao Yuan
Author:
Hou-Yu Zhai
Author:
Jianhua Zhang
Author:
Lajos Hanzo
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