Hierarchical Passive Beamforming for Reconfigurable Intelligent Surface Aided Communications
IEEE Wireless Communications Letters(2021)
摘要
In reconfigurable intelligent surfaces (RISs) aided communications, the existing passive beamforming (PB) design involves polynomial complexity in the number of reflecting elements, and thus is difficult to implement due to a massive number of reflecting elements. To overcome this difficulty, we propose a reflection-angle-based cascaded channel model by adopting the generalized Snell’s law, in whi...
更多查看译文
关键词
Array signal processing,Channel models,Azimuth,Surface treatment,Optimization,Signal processing algorithms,Minimization
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络