8 citations · 12 across the 4 of their papers we have counts for
4 papers
Two-Stage Channel Estimation Approach for Cell-Free IoT With Massive Random Access
Xinhua Wang, Alexei Ashikhmin, Zhicheng Dong +1
We investigate the activity detection and channel estimation issues for cell-free Internet of Things (IoT) networks with massive random access. In each time slot, only partial devi…
Minimizing Age of Information in Cognitive Radio-based IoT Systems: Underlay or Overlay?
Yifan Gu, He Chen, Chao Zhai +2
We consider a cognitive radio-based Internet-of-Things (CR-IoT) network consisting of one primary IoT (PIoT) system and one secondary IoT (SIoT) system. The IoT devices of both the…
Cooperative Strategies for Wireless-Powered Communications: An Overview
He Chen, Chao Zhai, Yonghui Li +1
Radio frequency (RF) energy transfer and harvesting has been intensively studied recently as a promising approach to significantly extend the lifetime of energy-constrained wireles…
Self-Interference Suppression for the Full-Duplex Wireless Communication with Large-Scale Antenna
Pengbo Xing, Ju Liu, Chao Zhai +2
In this letter, we proposed a shared-antenna full-duplex massive MIMO model for the multiuser MIMO system. This model exploits a single antenna array at the base station (BS) to tr…