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Massive MIMO performance with imperfect channel reciprocity and channel estimation error
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Mi, De, Dianati, Mehrdad, Zhang, Lei, Muhaidat, Sami and Tafazolli, Rahim (2017) Massive MIMO performance with imperfect channel reciprocity and channel estimation error. IEEE Transactions on Communications, 65 (9). pp. 3734-3749. doi:10.1109/TCOMM.2017.2676088 ISSN 0090-6778.
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Official URL: http://dx.doi.org/10.1109/TCOMM.2017.2676088
Abstract
Channel reciprocity in time-division duplexing (TDD) massive multiple-input multiple-output (MIMO) systems can be exploited to reduce the overhead required for the acquisition of channel state information (CSI). However, perfect reciprocity is unrealistic in practical systems due to random radio-frequency (RF) circuit mismatches in uplink and downlink channels. This can result in a significant degradation in the performance of linear precoding schemes, which are sensitive to the accuracy of the CSI. In this paper, we model and analyse the impact of RF mismatches on the performance of linear precoding in a TDD multi-user massive MIMO system, by taking the channel estimation error into considerations. We use the truncated Gaussian distribution to model the RF mismatch, and derive closed-form expressions of the output signal-to-interference-plus-noise ratio for maximum ratio transmission and zero forcing precoders. We further investigate the asymptotic performance of the derived expressions, to provide valuable insights into the practical system designs, including useful guidelines for the selection of the effective precoding schemes. Simulation results are presented to demonstrate the validity and accuracy of the proposed analytical results.
Item Type: | Journal Article | |||||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | |||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | |||||||||
Library of Congress Subject Headings (LCSH): | MIMO systems, Radio frequency modulation -- Transmitters and transmission | |||||||||
Journal or Publication Title: | IEEE Transactions on Communications | |||||||||
Publisher: | IEEE | |||||||||
ISSN: | 0090-6778 | |||||||||
Official Date: | September 2017 | |||||||||
Dates: |
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Volume: | 65 | |||||||||
Number: | 9 | |||||||||
Page Range: | pp. 3734-3749 | |||||||||
DOI: | 10.1109/TCOMM.2017.2676088 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||
Date of first compliant deposit: | 21 December 2017 | |||||||||
Date of first compliant Open Access: | 21 December 2017 | |||||||||
RIOXX Funder/Project Grant: |
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