室内热点场景多频段RIS辅助MIMO通信信道测量与建模

摘要：对Sub-6 GHz频段和毫米波频段可重构智能超表面（RIS）辅助多输入多输出（MIMO）通信信道进行了室内热点（InH）场景下的信道测量。基于上述信道测量结果，研究了RIS辅助通信信道修正浮动截距（FI）模型，并对模型的准确性以及参数特性进行了验证。对RIS辅助通信信道在多频段的传播特性进行了分析，包括路径损耗增益、路径损耗因子（PLE）、时间色散等。上述信道测量和建模结果将为RIS辅助通信系统的实际应用奠定基础。

关键词：RIS；信道测量；信道建模；Sub-6 GHz；毫米波

Abstract: The channel measurements and modeling are conducted for reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output (MIMO) communications in an indoor hotspots (InH) scenario at the Sub-6 GHz band and millimeter wave band. Based on the channel measurement results, the modified floating-intercept (FI) path loss model for RIS-assisted wireless communication is investigated, whose accuracy and parameter properties are verified. Moreover, the propagation characteristics for RIS-assisted channels, including path loss gain, path loss exponent (PLE), time dispersion, etc., are analyzed at the multi-frequency band. These channel measurements and modeling results would lay the foundation for future applications of RIS-assisted communication systems in practice.

Keywords: RIS; channel measurement; channel model; Sub-6 GHz; millimeter wave