Modified Low Complexity Precoding Algorithm for Millimeter Wave MIMO Systems

In contrast to conventional multiple-input multiple-output (MIMO) systems, precoding in millimeter wave (mmWave) MIMO systems at baseband is subject to a non-trivial practical constraint which include the number of signal mixers and analog-to-digital converters. Therefore, as a cost-effective altern...

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Vydané v:2018 Second International Conference on Intelligent Computing and Control Systems (ICICCS) s. 1066 - 1069
Hlavní autori: Rohatgi, Archit, Rawat, Meenakshi
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.06.2018
Predmet:
Complexity theory
hybrid precoding
improved performance
Least Squares
low Complexity
Matching pursuit algorithms
MIMO communication
Minimization
Optimization
practical design
Precoding
Radio frequency
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Popis
Shrnutí:In contrast to conventional multiple-input multiple-output (MIMO) systems, precoding in millimeter wave (mmWave) MIMO systems at baseband is subject to a non-trivial practical constraint which include the number of signal mixers and analog-to-digital converters. Therefore, as a cost-effective alternative, hybrid precoding which comprises of digital and analog precoder has received considerable attention. However, the optimal design of such hybrid structure has not been fully understood. A low complexity algorithm used in practical structures is investigated and a modified version of the algorithm using least squares method is proposed. The results of the proposed algorithm will show the reduction in complexity and improvement in the performance of low complexity alternating minimization algorithm.
DOI:10.1109/ICCONS.2018.8662941