42 citations · 43 across the 7 of their papers we have counts for
7 papers
MLE-based Device Activity Detection under Rician Fading for Massive Grant-free Access with Perfect and Imperfect Synchronization
Wang Liu, Ying Cui, Feng Yang +2
Most existing studies on massive grant-free access, proposed to support massive machine-type communications (mMTC) for the Internet of things (IoT), assume Rayleigh fading and perf…
Analysis and Optimization of A Double-IRS Cooperatively Assisted System with A Quasi-Static Phase Shift Design
Gengfa Ding, Feng Yang, Lianghui Ding +1
The analysis and optimization of single intelligent reflecting surface (IRS)-assisted systems have been extensively studied, whereas little is known regarding multiple-IRS-assisted…
Joint Optimization of Preamble Selection and Access Barring for Random Access in MTC with General Device Activities
Wang Liu, Ying Cui, Feng Yang +2
Most existing random access schemes for machine-type communications (MTC) simply adopt a uniform preamble selection distribution, irrespective of the underlying device activity dis…
Analysis and Optimization of Successful Symbol Transmission Rate for Grant-free Massive Access with Massive MIMO
Gang Chen, Ying Cui, Hei Victor Cheng +2
Grant-free massive access is an important technique for supporting massive machine-type communications (mMTC) for Internet-of-Things (IoT). Two important features in grant-free mas…
Low Complexity Algorithms for Robust Multigroup Multicast Beamforming
Guangda Zang, Hei Victor Cheng, Ying Cui +4
Existing methods for robust multigroup multicast beamforming obtain feasible points using semidefinite relaxation (SDR) and Gaussian randomization, and have high computational comp…
Optimal Hybrid Beamforming for Multiuser Massive MIMO Systems With Individual SINR Constraints
Guangda Zang, Ying Cui, Hei Victor Cheng +3
In this letter, we consider optimal hybrid beamforming design to minimize the transmission power under individual signal-to-interference-plus-noise ratio (SINR) constraints in a mu…
The Performance Analysis of Coded Cache in Wireless Fading Channel
Wei Huang, Sinong Wang, Lianghui Ding +2
The rapid growth of data volume and the accompanying congestion problems over the wireless networks have been critical issues to content providers. A novel technique, termed as cod…