2 papers
eess.SY2025
Joint Beamforming with Extremely Large Scale RIS: A Sequential Multi-Agent A2C Approach
Zhi Chai, Jiajie Xu, Justin P Coon +1
It is a challenging problem to jointly optimize the base station (BS) precoding matrix and the reconfigurable intelligent surface (RIS) phases simultaneously in a RIS-assisted mult…
eess.SY2024
RIS-Assisted Millimeter Wave Communications for Indoor Scenarios: Modeling and Coverage Analysis
Zhi Chai, Jiajie Xu, Justin P. Coon +1
Millimeter wave (mmWave) communications and reconfigurable intelligent surfaces (RIS) are two critical technologies for next-generation networks, especially in dense indoor environ…