52 citations · 68 across the 11 of their papers we have counts for
7 papers · 1 filter
Robust Beamforming for Multiuser MIMO Systems with Unknown Channel Statistics: A Hybrid Offline-Online Framework
Wenzhuo Zou, Ming-Min Zhao, An Liu +1
Robust beamforming design under imperfect channel state information (CSI) is a fundamental challenge in multiuser multiple-input multiple-output (MU-MIMO) systems, particularly whe…
AMBER: An Adaptive Multimodal Mask Transformer for Beam Prediction with Missing Modalities
Chenyiming Wen, Binpu Shi, Min Li +3
With the widespread adoption of millimeter-wave (mmWave) massive multi-input-multi-output (MIMO) in vehicular networks, accurate beam prediction and alignment have become critical…
Stochastic Transceiver Optimization in Multi-Tags Symbiotic Radio Systems
Xihan Chen, Hei Victor Cheng, Kaiming Shen +2
Symbiotic radio (SR) is emerging as a spectrum- and energy-efficient communication paradigm for future passive Internet-of-things (IoT), where some single-antenna backscatter devic…
Power Control for Massive MIMO Systems with Nonorthogonal Pilots
Xihan Chen, Kaiming Shen, Hei Victor Cheng +3
This letter shows that optimizing the transmit powers along with optimally designed nonorthogonal pilots can significantly reduce pilot contamination and improve the overall throug…
Mixed-Timescale Beamforming and Power Splitting for Massive MIMO Aided SWIPT IoT Network
Xihan Chen, Hei Victor Cheng, An Liu +2
Traditional simultaneous wireless information and power transfer (SWIPT) with power splitting assumes perfect channel state information (CSI), which is difficult to obtain especial…
Two-Timescale Hybrid Compression and Forward for Massive MIMO Aided C-RAN
An Liu, Xihan Chen, Wei Yu +2
We consider the uplink of a cloud radio access network (C-RAN), where massive MIMO remote radio heads (RRHs) serve as relays between users and a centralized baseband unit (BBU). Al…
Joint Cooperative Computation and Interactive Communication for Relay-Assisted Mobile Edge Computing
Xihan Chen, Qingjiang Shi, Yunlong Cai +2
To realize cooperative computation and communication in a relay mobile edge computing system, we develop a hybrid relay forward protocol, where we seek to balance the execution del…