Active RIS-Assisted MIMO-OFDM System: Analyses and Prototype Measurements

Autor:	Chian, De-Ming, Chen, Feng-Ji, Chang, Yu-Chen, Wen, Chao-Kai, Wu, Chi-Hung, Wang, Fu-Kang, Wong, Kai-Kit, Chae, Chan-Byoung
Rok vydání:	2023
Předmět:	Computer Science - Information Theory Electrical Engineering and Systems Science - Signal Processing
Druh dokumentu:	Working Paper
Popis:	In this study, we develop an active reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) prototype compliant with the 5G New Radio standard at 3.5~GHz. The experimental results clearly indicate that active RIS plays a vital role in enhancing MIMO performance, surpassing passive RIS. Furthermore, when considering factors such as complexity, energy consumption, and performance, the comparative evaluation between passive RIS and active RIS reinforces the critical role of active RIS in MIMO systems. These findings underscore the practical significance of active RIS in improving MIMO gain in 5G scenarios. Comment: 5 pages, 5 figures, 1 table, accepted by IEEE Communications Letters, for demo video see: https://www.youtube.com/watch?v=3R6eZXizwns
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2307.15280 Zobrazit plný text záznamu View this record from Arxiv