210 citations · 262 across the 18 of their papers we have counts for
19 papers
IRS-Aided Sectorized Base Station Design and 3D Coverage Performance Analysis
Xintong Chen, Jiangbin Lyu, Liqun Fu
Intelligent reflecting surface (IRS) is regarded as a revolutionary paradigm that can reconfigure the wireless propagation environment for enhancing the desired signal and/or weake…
Millimeter Wave Full-Duplex Networks: MAC Design and Throughput Optimization
Shengbo Liu, Wen Wu, Liqun Fu +4
Full-duplex (FD) technique can remarkably boost the network capacity in the millimeter wave (mmWave) bands by enabling simultaneous transmission and reception. However, due to dire…
Machine Learning for Large-Scale Optimization in 6G Wireless Networks
Yandong Shi, Lixiang Lian, Yuanming Shi +6
The sixth generation (6G) wireless systems are envisioned to enable the paradigm shift from "connected things" to "connected intelligence", featured by ultra high density, large-sc…
Quick and Reliable LoRa Physical-layer Data Aggregation through Multi-Packet Reception
Lizhao You, Zhirong Tang, Pengbo Wang +3
This paper presents a Long Range (LoRa) physical-layer data aggregation system (LoRaPDA) that aggregates data (e.g., sum, average, min, max) directly in the physical layer. In part…
Broadband Digital Over-the-Air Computation for Wireless Federated Edge Learning
Lizhao You, Xinbo Zhao, Rui Cao +2
This paper presents the first orthogonal frequency-division multiplexing(OFDM)-based digital over-the-air computation (AirComp) system for wireless federated edge learning, where m…
Energy-Efficient Trajectory Design for UAV-Aided Maritime Data Collection in Wind
Yifan Zhang, Jiangbin Lyu, Liqun Fu
Unmanned aerial vehicles (UAVs), especially fixed-wing ones that withstand strong winds, have great potential for oceanic exploration and research. This paper studies a UAV-aided m…
Broadband Digital Over-the-Air Computation for Asynchronous Federated Edge Learning
Xinbo Zhao, Lizhao You, Rui Cao +2
This paper presents the first broadband digital over-the-air computation (AirComp) system for phase asynchronous OFDM-based federated edge learning systems. Existing analog AirComp…
Placement Optimization and Power Control in Intelligent Reflecting Surface Aided Multiuser System
Bifeng Ling, Jiangbin Lyu, Liqun Fu
Intelligent reflecting surface (IRS) is a new and revolutionary technology capable of reconfiguring the wireless propagation environment by controlling its massive low-cost passive…
Federated Learning via Intelligent Reflecting Surface
Zhibin Wang, Jiahang Qiu, Yong Zhou +4
Over-the-air computation (AirComp) based federated learning (FL) is capable of achieving fast model aggregation by exploiting the waveform superposition property of multiple access…
The optimal network throughputs when the model-aware node coexists with other nodes using different MAC protocols
Xiaowen Ye, Yiding Yu, Liqun Fu
In this document, we give the optimal network throughput when the DR-DLMA node (see our paper for definition) coexists with the nodes using other protocol (e.g., TDMA and/or ALOHA)…
Analysis and Optimization for Large-Scale LoRa Networks: Throughput Fairness and Scalability
Jiangbin Lyu, Dan Yu, Liqun Fu
LoRa networks are pivotally enabling Long Range connectivity to low-cost and power-constrained user equipments (UEs) in a wide area, whereas a critical issue is to effectively allo…
Energy-Efficient Cyclical Trajectory Design for UAV-Aided Maritime Data Collection in Wind
Yifan Zhang, Jiangbin Lyu, Liqun Fu
Unmanned aerial vehicles (UAVs), especially fixed-wing ones that withstand strong winds, have great potential for oceanic exploration and research. This paper studies a UAV-aided m…
Federated Machine Learning for Intelligent IoT via Reconfigurable Intelligent Surface
Kai Yang, Yuanming Shi, Yong Zhou +3
Intelligent Internet-of-Things (IoT) will be transformative with the advancement of artificial intelligence and high-dimensional data analysis, shifting from "connected things" to…
Placement Optimization of Aerial Base Stations with Deep Reinforcement Learning
Jin Qiu, Jiangbin Lyu, Liqun Fu
Unmanned aerial vehicles (UAVs) can be utilized as aerial base stations (ABSs) to assist terrestrial infrastructure for keeping wireless connectivity in various emergency scenarios…
Achieving Max-Min Throughput in LoRa Networks
Jiangbin Lyu, Dan Yu, Liqun Fu
With growing popularity, LoRa networks are pivotally enabling Long Range connectivity to low-cost and power-constrained user equipments (UEs). Due to its wide coverage area, a crit…
Energy efficient D2D communications in dynamic TDD systems
Demia Della Penda, Liqun Fu, Mikael Johansson
Network-assisted device-to-device communication is a promising technology for improving the performance of proximity-based services. This paper demonstrates how the integration of…
Link Scheduling in Multi-Transmit-Receive Wireless Networks
Hong-Ning Dai, Soung Chang Liew, Liqun Fu
This paper investigates the problem of link scheduling to meet traffic demands with minimum airtime in a multi-transmit-receive (MTR) wireless network. MTR networks are a new class…
Effective Carrier Sensing in CSMA Networks under Cumulative Interference
Liqun Fu, Soung Chang Liew, Jianwei Huang
This paper proposes and investigates the concept of a safe carrier-sensing range that can guarantee interference safe (also termed hidden-node-free) transmissions in CSMA networks…
Safe Carrier Sensing Range in CSMA Network under Physical Interference Model
Liqun Fu, Soung Chang Liew, Jianwei Huang
In this paper, we study the setting of carrier-sensing range in 802.11 networks under the (cumulative) physical interference model. Specifically, we identify a carrier-sensing rang…