464 citations · 3k across the 68 of their papers we have counts for
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A Survey of Recent Advances in Optimization Methods for Wireless Communications
Ya-Feng Liu, Tsung-Hui Chang, Mingyi Hong +4
Mathematical optimization is now widely regarded as an indispensable modeling and solution tool for the design of wireless communications systems. While optimization has played a s…
QoS-based Beamforming and Compression Design for Cooperative Cellular Networks via Lagrangian Duality
Xilai Fan, Ya-Feng Liu, Liang Liu +1
This paper considers the quality-of-service (QoS)-based joint beamforming and compression design problem in the downlink cooperative cellular network, where multiple relay-like bas…
Low-Complexity Channel Estimation for Massive MIMO Systems with Decentralized Baseband Processing
Yanqing Xu, Bo Wang, Enbin Song +2
The traditional centralized baseband processing architecture is faced with the bottlenecks of high computation complexity and excessive fronthaul communication, especially when the…
CSI Sensing from Heterogeneous User Feedbacks: A Constrained Phase Retrieval Approach
Lei Li, Xing Zeng, Ya-Feng Liu +2
This paper investigates the downlink channel state information (CSI) sensing in 5G heterogeneous networks composed of user equipments (UEs) with different feedback capabilities. We…
Learning to Beamform in Heterogeneous Massive MIMO Networks
Minghe Zhu, Tsung-Hui Chang, Mingyi Hong
It is well-known that the problem of finding the optimal beamformers in massive multiple-input multiple-output (MIMO) networks is challenging because of its non-convexity, and conv…
UAV Positioning and Power Control for Two-Way Wireless Relaying
Lei Li, Tsung-Hui Chang, Shu Cai
This paper considers an unmanned-aerial-vehicle-enabled (UAV-enabled) wireless network where a relay UAV is used for two-way communications between a ground base station (BS) and a…