Presentation Information
[B-1A-28]Study of a Simplified Simulation Model for Metamaterial-Based Electromagnetic Scattering Sheet
◎△Takumu Amemiya1, Yasutaka Murakami1, Jerdvisanop Chakarothai2, Katsumi Fujii2 (1. The University of Electro-Communications, 2. National Institute of Information and Communications Technology)
Keywords:
Radio Propagation,5G,Millimeter-Wave,Metamaterial,Simulation
In this study, we propose a simplified radio propagation simulation model to reproduce the scattering characteristics of a Metamaterial-Based Electromagnetic Scattering Sheet (EMSS). Millimeter-wave signals at 28 GHz used in 5G systems strongly depend on line-of-sight conditions, resulting in coverage holes in non-line-of-sight (NLOS) environments. Although the EMSS improves communication quality, its performance depends on its installation location and size. Therefore, a simulation model is required to determine its optimal deployment. The proposed model represents the EMSS scattering pattern with multiple virtual transmitters. Their transmit powers are determined from the received signal strength on the EMSS surface. The scattering pattern is divided into dominant beam components modeled as antenna radiation patterns. Simulations with different numbers of virtual transmitters were compared with measurements. For evaluation, cumulative distribution functions (CDFs) of the measured and simulated received signal strength distributions were calculated, and the Kolmogorov–Smirnov (KS) distance was used. One virtual transmitter yielded the minimum KS distance and best reproduced the spatial distribution, variation trend, and received signal strength levels. These results show that the proposed model reproduces the scattering characteristics of the EMSS.