On the Degrees of Freedom of RIS-Aided Holographic MIMO Systems

Juan Carlos Ruiz-Sicilia; Xuewen Qian; Marco Di Renzo; Vincenzo Sciancalepore; Merouane Debbah; Xavier Costa-Perez

On the Degrees of Freedom of RIS-Aided Holographic MIMO Systems

Information Theory 2023-01-30 v2 Signal Processing math.IT

Authors: Juan Carlos Ruiz-Sicilia , Xuewen Qian , Marco Di Renzo , Vincenzo Sciancalepore , Merouane Debbah , Xavier Costa-Perez

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Abstract

In this paper, we study surface-based communication systems based on different levels of channel state information for system optimization. We analyze the system performance in terms of rate and degrees of freedom (DoF). We show that the deployment of a reconfigurable intelligent surface (RIS) results in increasing the number of DoF, by extending the near-field region. Over Rician fading channels, we show that an RIS can be efficiently optimized only based on the positions of the transmitting and receiving surfaces, while providing good performance if the Rician fading factor is not too small.

Keywords

reconfigurable intelligent surface holographic mimo degrees of freedom near-field rician fading channel state information

Cite

@article{arxiv.2301.07968,
  title  = {On the Degrees of Freedom of RIS-Aided Holographic MIMO Systems},
  author = {Juan Carlos Ruiz-Sicilia and Xuewen Qian and Marco Di Renzo and Vincenzo Sciancalepore and Merouane Debbah and Xavier Costa-Perez},
  journal= {arXiv preprint arXiv:2301.07968},
  year   = {2023}
}

On the Degrees of Freedom of RIS-Aided Holographic MIMO Systems

Abstract

Keywords

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