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Finding Globally Optimal Configuration of Active RIS in Linear Time

Signal Processing 2023-08-09 v1 Information Theory math.IT
Authors: Heedong Do , Namyoon Lee
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Abstract

This paper presents an algorithm for finding the optimal configuration of active reconfigurable intelligent surface (RIS) when both transmitter and receiver are equipped with a single antenna each. The resultant configuration is globally optimal and it takes linear time for the computation. Moreover, there is a closed-form expression for the optimal configuration when the direct link vanishes, which enables further analysis.

Keywords

reconfigurable intelligent surfaces reconfigurable intelligent surface

Cite

@article{arxiv.2308.04058,
  title  = {Finding Globally Optimal Configuration of Active RIS in Linear Time},
  author = {Heedong Do and Namyoon Lee},
  journal= {arXiv preprint arXiv:2308.04058},
  year   = {2023}
}

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