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Low-Complexity Subspace-Based Multi-User Hybrid Precoding
Published in Institute of Electrical and Electronics Engineers Inc.
2019
Volume: 23
   
Issue: 2
Pages: 222 - 225
Abstract
We propose a novel multi-user hybrid precoder design that imitates the bit error rate (BER) performance of a given fully digital precoder by minimizing the Frobenious norm between them. We show that the proposed design equivalently minimizes the chordal distance between the column spaces of the phase-only RF precoder and the given fully digital precoder. The proposed design, in the large antenna regime, has the same BER as that of an existing optimal hybrid precoder design but with much reduced complexity. Furthermore, the proposed design is also shown to approach the BER of a given fully digital precoder. © 1997-2012 IEEE.
About the journal
JournalData powered by TypesetIEEE Communications Letters
PublisherData powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
ISSN10897798
Open AccessNo
Concepts (10)
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    Antennas
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    BASE BANDS
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    CHORDAL DISTANCE
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    Complexity theory
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    Mimo communication
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    PRE CODERS
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    Precoding
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    Radio frequencies
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    SUBSPACE
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    Bit error rate