Comparing Power Scattered by RIS with Natural Scatter around Urban Corners

Comparing Power Scattered by RIS with Natural Scatter around Urban Corners
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RIS 散射功率与城市角落自然散射功率的比较

DOI：
10.1109/ap-s/usnc-ursi47032.2022.9887301
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发表时间：
2022
期刊：
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)
影响因子：
--
通讯作者：
R. Valenzuela
R. Valenzuela
中科院分区：
--
文献类型：
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作者：
D. Chizhik;Jinfeng Du;R. Valenzuela

文献摘要

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反射智能表面（RIS）被认为是有前途的，在改善覆盖的非视线（NLOS）无线链路，特别是在毫米波段。RIS提供的覆盖范围在这里进行比较，从这样的环境传播机制，如散射从街道杆，粗糙的建筑物墙壁和角落衍射的覆盖范围。据发现，这样的背景散射提供的信号水平在城市街角附近的一个理想的0.3米× 0.3米RIS在28 GHz的。因此，在这种情况下，需要更大面积的RIS来提供实质性的增益。
Reflective Intelligent Surfaces (RIS) are considered promising in improving coverage in Non-Line of sight (NLOS) wireless links, especially at mm wave bands. Coverage provided by RIS is here compared to coverage from such ambient propagation mechanisms as scattering from street poles, rough building walls and corner diffraction. It is found that such background scatter provides signal levels around an urban street corner comparable to that of an ideal 0.3m x 0.3 m RIS at 28 GHz. Larger area RIS is thus required to deliver substantial gain in such a scenario.