286 citations · 457 across the 13 of their papers we have counts for
10 papers · 1 filter
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…
Quantized Federated Learning under Transmission Delay and Outage Constraints
Yanmeng Wang, Yanqing Xu, Qingjiang Shi +1
Federated learning (FL) has been recognized as a viable distributed learning paradigm which trains a machine learning model collaboratively with massive mobile devices in the wirel…
Intelligent User Clustering and Robust Beamforming Design for UAV-NOMA Downlink
Yanqing Xu, Fang Fang, Donghong Cai +1
In this work, we consider a downlink NOMA network with multiple single-antenna users and multi-antenna UAVs. In particular, the users are spatially located in several clusters by f…
HARQ-CC Enabled NOMA Designs With Outage Probability Constraints
Yanqing Xu, Donghong Cai, Fang Fang +3
In this paper, we aim to design an adaptive power allocation scheme to minimize the average transmit power of a hybrid automatic repeat request with chase combining (HARQ-CC) enabl…
Physical Layer Security in UAV Systems: Challenges and Opportunities
Xiaofang Sun, Derrick Wing Kwan Ng, Zhiguo Ding +2
Unmanned aerial vehicle (UAV) wireless communications have experienced an upsurge of interest in both military and civilian applications, due to its high mobility, low cost, on-dem…
Optimal Task Assignment and Power Allocation for NOMA Mobile-Edge Computing Networks
Fang Fang, Yanqing Xu, Zhiguo Ding +3
Mobile edge computing (MEC) can enhance the computing capability of mobile devices, and non-orthogonal multiple access (NOMA) can provide high data rates. Combining these two techn…
Transmission Energy Minimization for Heterogeneous Low-Latency NOMA Downlink
Yanqing Xu, Chao Shen, Tsung-Hui Chang +3
This paper investigates the transmission energy minimization problem for the two-user downlink with strictly heterogeneous latency constraints. To cope with the latency constraints…
Energy-Efficient Non-Orthogonal Transmission under Reliability and Finite Blocklength Constraints
Yanqing Xu, Chao Shen, Tsung-Hui Chang +3
This paper investigates an energy-efficient non-orthogonal transmission design problem for two downlink receivers that have strict reliability and finite blocklength (latency) cons…
Joint Beamforming and Power Splitting Control in Downlink Cooperative SWIPT NOMA Systems
Yanqing Xu, Chao Shen, Zhiguo Ding +4
This paper investigates the application of simultaneous wireless information and power transfer (SWIPT) to cooperative non-orthogonal multiple access (NOMA). A new cooperative mult…