71 citations · 238 across the 20 of their papers we have counts for
9 papers · 1 filter
Placement and Resource Allocation of Wireless-Powered Multiantenna UAV for Energy-Efficient Multiuser NOMA
Zhongyu Wang, Tiejun Lv, Jie Zeng +1
This paper investigates a new downlink nonorthogonal multiple access (NOMA) system, where a multiantenna unmanned aerial vehicle (UAV) is powered by wireless power transfer (WPT) a…
Sum-Rate Maximization for Multi-Reconfigurable Intelligent Surface-Assisted Device-to-Device Communications
Yashuai Cao, Tiejun Lv, Wei Ni +1
This paper proposes to deploy multiple reconfigurable intelligent surfaces (RISs) in device-to-device (D2D)-underlaid cellular systems. The uplink sum-rate of the system is maximiz…
Joint Estimation of Multipath Angles and Delays for Millimeter-Wave Cylindrical Arrays with Hybrid Front-ends
Zhipeng Lin, Tiejun Lv, Wei Ni +3
Accurate channel parameter estimation is challenging for wideband millimeter-wave (mmWave) large-scale hybrid arrays, due to beam squint and much fewer radio frequency (RF) chains…
Energy-Efficient Transmission of Hybrid Array with Non-Ideal Power Amplifiers and Circuitry
Yuhao Zhang, Qimei Cui, Wei Ni +1
This paper presents a new approach to efficiently maximizing the energy efficiency (EE) of hybrid arrays under a practical setting of non-ideal power amplifiers (PAs) and non-negli…
Effective Capacity Analysis in Ultra-Dense Wireless Networks with Random Interference
Yu Gu, Qimei Cui, Yu Chen +3
Ultra-dense networks (UDNs) provide a promising paradigm to cope with exponentially increasing mobile traffic. However, little work has to date considered unsaturated traffic with…
Optimal Scheduling across Heterogeneous Air Interfaces of LTE/WiFi Aggregation
Yu Gu, Qimei Cui, Wei Ni +2
LTE/WiFi Aggregation (LWA) provides a promising approach to relieve data traffic congestion in licensed bands by leveraging unlicensed bands. Critical challenges arise from provisi…