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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…
eess.SY2023
Optimal Mobility and Communication Strategy to Maximize the Value of Information in IoT Networks
Zijing Wang, Mihai-Alin Badiu, Justin P. Coon
The Internet of Things (IoT) is an emerging next-generation technology in the fourth industrial revolution. In industrial IoT networks, sensing devices are largely deployed to moni…