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Published in 2020 at "Wireless Networks"
DOI: 10.1007/s11276-019-02187-0
Abstract: Hybrid Precoding has been adopted as a promising technology for 5th generation wireless communication systems. In this paper, we propose a hybrid precoding scheme based on minimum mean square error (MMSE) and particle swarm optimization…
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Keywords:
hybrid precoding;
mmse pso;
precoding multiuser;
pso ... See more keywords
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Published in 2018 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2018.2849079
Abstract: Load-modulated arrays (LMA) use a single central power amplifier (CPA) and tune (modulate) the antenna loads according to the information signal, eliminating the need for traditional RF chains (consisting of DACs, mixers, and filters) at…
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Keywords:
precoding multiuser;
modulated arrays;
power;
load modulated ... See more keywords
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Published in 2019 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2019.2901685
Abstract: We study the minimum mean-squared error (MMSE) precoding for multiuser visible light communication downlink systems. Different from radio frequency systems, this problem does not admit a closed-form solution due to the light-emitting diode optical power…
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Keywords:
mmse;
precoding multiuser;
optimal mmse;
globally optimal ... See more keywords
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Published in 2017 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2016.2642187
Abstract: In practical multiuser multiple-input multiple-output (MU-MIMO) systems with limited feedback, inter-user interference cannot be completely suppressed due to the channel state information quantization error, and the residual interference degrades the throughputs. In this letter, we…
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Keywords:
multiuser mimo;
mimo;
multimode precoding;
feedback ... See more keywords
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Published in 2022 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2021.3131478
Abstract: Driven by the demand of building power-efficient next generation cellular systems, transmission schemes that facilitate the use of low-resolution digital-to-analog converters (DACs) have drawn great research attentions lately. In this correspondence, we investigated symbol-level precoding…
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Keywords:
multiuser multiple;
level precoding;
precoding multiuser;
resolution ... See more keywords