Measurement-Based Small-Scale Channel Model for Sub-6 GHz RIS-Assisted Communications

被引:0
作者
Sang, Jian [1 ]
Lan, Jifeng [1 ]
Zhou, Mingyong [1 ]
Gao, Boning [1 ]
Tang, Wankai [1 ]
Li, Xiao [1 ]
Matthaiou, Michail [2 ]
Jin, Shi [1 ]
Renzo, Marco Di [3 ]
机构
[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210012, Peoples R China
[2] Queens Univ Belfast, Ctr Wireless Innovat CWI, Belfast BT39DT, North Ireland
[3] Univ Paris Saclay, CNRS, CentraleSupelec, Lab Signaux & Syst, F-91192 Gif Sur Yvette, France
基金
欧洲研究理事会; 中国国家自然科学基金;
关键词
Delays; Channel models; Buildings; Reconfigurable intelligent surfaces; Wireless communication; Encoding; Antenna measurements; < named-content xmlns:xlink=& quot; http://www.w3.org/1999/xlink & quot; xmlns:ali=& quot; http://www.niso.org/schemas/ali/1.0/& quot; xmlns:mml=& quot; http://www.w3.org/1998/Math/MathML & quot; xmlns:xsi=& quot; http://www.w3.org/2001/XMLSchema-instance & quot; content-type=& quot; math & quot; xlink:type=& quot; simple & quot; > < inline-formula > < tex-math notation=& quot; LaTeX & quot; >$K$</tex-math > </inline-formula > </named-content >-factor; RIS; small-scale fading; statistical channel model;
D O I
10.1109/TVT.2024.3373819
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Reconfigurable intelligent surfaces (RISs) have attracted increasing interest from both academia and industry, thanks to their unique features on controlling electromagnetic (EM) waves. Although theoretical models for RIS-empowered communications have covered a variety of applications, yet, very few papers have investigated the modeling of real propagation characteristics. In this paper, we fill this gap by providing an empirical statistical channel model to describe the small-scale channel variations for an RIS-assisted broadband system at 2.6 GHz. Based on empirical channel measurements in outdoor, indoor and outdoor-to-indoor (O2I) environments, we compare and analyze the global, inter-cluster and intra-cluster parameters. Measurement results indicate that the deployment of an RIS with proper phase configurations can significantly improve the channel quality by enhancing the K-factor and reducing the time dispersion. The small-scale fading is well characterized by the proposed statistical model and empirical channel parameters. These results are essential for the design of emerging RIS-assisted wireless systems for future applications.
引用
收藏
页码:12178 / 12183
页数:6
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