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Accurate Statistical Characterization for Cooperative Multi RIS-Aided Wireless System
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DOI：10.1109/LCOMM.2026.3677601.png)
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Abstract
En 中文
Reconfigurable intelligent surfaces (RIS) constitute a promising technology for beyond-<inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$5^{\text {th}}$ </tex-math></inline-formula> Generation (B5G)/<inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$6^{\text {th}}$ </tex-math></inline-formula> Generation (6G) wireless systems. In this letter, using recursion approach, the second and fourth moment for the cooperative <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$M$ </tex-math></inline-formula> RIS-aided end-to-end channel are derived. Based on the moment matching (MM) approach, these moments are utilized to approximate the distribution for the cooperative <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$M$ </tex-math></inline-formula> RIS-assisted channel. It is shown that the outage probability (OP) and ergodic capacity (EC) performance of the considered system improves with the increase in <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$M$ </tex-math></inline-formula> when the number of reflecting elements (REs) per RIS is large.
Keywords:
Nakagami-m fading
RIS
Journal
IF:
4.4
Papers:
1.2W
Citations:
2.2W