43 citations · 115 across the 19 of their papers we have counts for
4 papers · 1 filter
Combating Multi-path Interference to Improve Chirp-based Underwater Acoustic Communication
Wenjun Xie, Enqi Zhang, Lizhao You +3
Linear chirp-based underwater acoustic communication has been widely used due to its reliability and long-range transmission capability. However, unlike the counterpart chirp techn…
Covariance-Based Activity Detection in Cooperative Multi-Cell Massive MIMO: Scaling Law and Efficient Algorithms
Ziyue Wang, Ya-Feng Liu, Zhaorui Wang +1
This paper focuses on the covariance-based activity detection problem in a multi-cell massive multiple-input multiple-output (MIMO) system. In this system, active devices transmit…
Reducing Channel Estimation and Feedback Overhead in IRS-Aided Downlink System: A Quantize-then-Estimate Approach
Rui Wang, Zhaorui Wang, Liang Liu +2
Channel state information (CSI) acquisition is essential for the base station (BS) to fully reap the beamforming gain in intelligent reflecting surface (IRS)-aided downlink communi…
Device Activity Detection in mMTC with Low-Resolution ADC: A New Protocol
Zhaorui Wang, Ya-Feng Liu, Ziyue Wang +3
This paper investigates the effect of low-resolution analog-to-digital converters (ADCs) on device activity detection in massive machine-type communications (mMTC). The low-resolut…