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Analog Beamforming Enabled Multicasting: Finite-Alphabet Inputs and Statistical CSI

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arxiv 2405.14029 v1 pith:RI6YV2GH submitted 2024-05-22 cs.IT eess.SPmath.IT

Analog Beamforming Enabled Multicasting: Finite-Alphabet Inputs and Statistical CSI

Yanjun Wu , Zhong Xie , Zhuochen Xie , Chongjun Ouyang , Xuwen Liang This is my paper
classification cs.IT eess.SPmath.IT
keywords analogarraybeamforminggainchannelfinite-alphabetinputsmulticast
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The average multicast rate (AMR) is analyzed in a multicast channel utilizing analog beamforming with finite-alphabet inputs, considering statistical channel state information (CSI). New expressions for the AMR are derived for non-cooperative and cooperative multicasting scenarios. Asymptotic analyses are conducted in the high signal-to-noise ratio regime to derive the array gain and diversity order. It is proved that the analog beamformer influences the AMR through its array gain, leading to the proposal of efficient beamforming algorithms aimed at maximizing the array gain to enhance the AMR.

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