MIMO-Assisted Wake-up Radio in a Single-Cell IoT Network
We study how MIMO can improve wake-up radios (WuR) for IoT devices. By using multiple antennas and beamforming, we achieve more reliable wake-ups and fewer false triggers compared to traditional SISO systems. Our simulations confirm that MIMO-assisted WuR is a more efficient solution for IoT networks.
February 20, 2025
Angle-domain hybrid beamforming-based mmWave massive MIMO-NOMA systems
We design angle-domain schemes for mmWave assive MIMO systems using hybrid beamforming techniques. One is designed using only NOMA, and the other is a joint of TDMA and NOMA.
March 8, 2023
Extended NYUSIM-based mmWave channel model and simulator for RIS-assisted systems
We extend the NYUSIM 3D channel simulator to include RIS-assisted mmWave systems, making studies more realistic than existing theoretical models. Our validation and simulations show how RIS improves signal power, especially when direct links are weak or blocked.
January 1, 2023
Multi-user angle-domain MIMO-NOMA system for mmWave communications
We propose an angle-domain NOMA scheme for mmWave MU-MIMO systems that uses only users’ angular information to boost sum-throughput, especially in congested cells. By designing new clustering, user ordering, and power allocation strategies based on angular metrics, our approach improves spectral efficiency by up to 39% and enables more effective interference management.
September 13, 2021
Multi-user digital beamforming based on path angle information for mm-wave MIMO systems
We evaluate the geometric features of conjugate beamforming and angle-domain digital beamforming for millimeter-wave communications using the NYUSIM channel model.
February 18, 2020