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Lattice-Reduction-Aided One-Bit Precoding for Massive MU-MIMO Systems
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DOI：10.1109/TVT.2019.2915202.png)
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One-bit precoding is a recently proposed scheme that facilitates the use of one-bit digital-to-analog converters to reduce the cost and power consumption in a massive antenna system. In line with this, we consider the massive multiuser-multiple-input multiple-output scenario and propose a lattice-reduction-aided one-bit precoding algorithm. The proposed algorithm solves the mean square error-based one-bit precoder design problem by augmenting the Babai's nearest plane procedure with a newly proposed list generation algorithm. The proposed precoder contains no tuning parameters and hence avoids additional overheads for parameter tuning when applied to a practical system. Furthermore, the symbol precoding stage in our precoder is noniterative and can be implemented via distributed processing. These desirable features along with an excellent performance-complexity tradeoff demonstrated that the proposed precoder stands out as a competitive alternative in addition to the existing one-bit precoders.
Keyword:
Massive MIMO
digital-to-analog converter
precoder
one-bit precoding
lattice reduction
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7.1
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1.8W
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6.6W
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