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    ARTICLE

    Weighted Gauss-Seidel Precoder for Downlink Massive MIMO Systems

    Jun-Yong Jang1, Won-Seok Lee1, Jae-Hyun Ro1, Young-Hawn You2, Hyoung-Kyu Song1,*

    CMC-Computers, Materials & Continua, Vol.67, No.2, pp. 1729-1745, 2021, DOI:10.32604/cmc.2021.015424 - 05 February 2021

    Abstract In this paper, a novel precoding scheme based on the Gauss-Seidel (GS) method is proposed for downlink massive multiple-input multiple-output (MIMO) systems. The GS method iteratively approximates the matrix inversion and reduces the overall complexity of the precoding process. In addition, the GS method shows a fast convergence rate to the Zero-forcing (ZF) method that requires an exact invertible matrix. However, to satisfy demanded error performance and converge to the error performance of the ZF method in the practical condition such as spatially correlated channels, more iterations are necessary for the GS method and increase… More >

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