4.2k citations · 22.3k across the 267 of their papers we have counts for
26 papers · 1 filter
Dynamic Base Station Operation in Large-Scale Green Cellular Networks
Yueling Che, Lingjie Duan, Rui Zhang
In this paper, to minimize the on-grid energy cost in a large-scale green cellular network, we jointly design the optimal base station (BS) on/off operation policy and the on-grid…
Proactive Eavesdropping via Cognitive Jamming in Fading Channels
Jie Xu, Lingjie Duan, Rui Zhang
To enhance the national security, there is a growing need for government agencies to legitimately monitor suspicious communication links for preventing intended crimes and terror a…
Distributed Energy Beamforming with One-Bit Feedback
Seunghyun Lee, Rui Zhang
Energy beamforming (EB) is a key technique for achieving efficient radio-frequency (RF) transmission enabled wireless energy transfer (WET). By optimally designing the waveforms fr…
Proactive Eavesdropping via Jamming for Rate Maximization over Rayleigh Fading Channels
Jie Xu, Lingjie Duan, Rui Zhang
Instead of against eavesdropping, this letter proposes a new paradigm in wireless security by studying how a legitimate monitor (e.g., government agencies) efficiently eavesdrops a…
Multi-antenna Wireless Powered Communication with Co-channel Energy and Information Transfer
Yueling Che, Jie Xu, Lingjie Duan +1
This letter studies a multi-antenna wireless powered communication (WPC) system with co-channel energy and information transfer, where a wireless device (WD), powered up by wireles…
Cooperative Local Caching under Heterogeneous File Preferences
Yinghao Guo, Lingjie Duan, Rui Zhang
Local caching is an effective scheme for leveraging the memory of the mobile terminal (MT) and short range communications to save the bandwidth usage and reduce the download delay…
Active Eavesdropping via Spoofing Relay Attack
Yong Zeng, Rui Zhang
This paper studies a new active eavesdropping technique via the so-called spoofing relay attack, which could be launched by the eavesdropper to significantly enhance the informatio…
Magnetic Beamforming for Wireless Power Transfer
Gang Yang, Mohammad R. Vedady Moghadam, Rui Zhang
Magnetic resonant coupling (MRC) is an efficient method for realizing the near-field wireless power transfer (WPT). The use of multiple transmitters (TXs) each with one coil can be…
Downlink SINR Balancing in C-RAN under Limited Fronthaul Capacity
Liu Liang, Zhang Rui
Cloud radio access network (C-RAN) with centralized baseband processing is envisioned as a promising candidate for the next-generation wireless communication network. However, the…
Adaptively Directional Wireless Power Transfer for Large-scale Sensor Networks
Zhe Wang, Lingjie Duan, Rui Zhang
Wireless power transfer (WPT) prolongs the lifetime of wireless sensor network by providing sustainable power supply to the distributed sensor nodes (SNs) via electromagnetic waves…
Secrecy Wireless Information and Power Transfer in OFDMA Systems
Meng Zhang, Yuan Liu, Rui Zhang
In this paper, we consider simultaneous wireless information and power transfer (SWIPT) in orthogonal frequency division multiple access (OFDMA) systems with the coexistence of inf…
Wireless Communications in the Era of Big Data
Suzhi Bi, Rui Zhang, Zhi Ding +1
The rapidly growing wave of wireless data service is pushing against the boundary of our communication network's processing power. The pervasive and exponentially increasing data t…
Wireless Powered Communication Networks: An Overview
Suzhi Bi, Yong Zeng, Rui Zhang
Wireless powered communication network (WPCN) is a new networking paradigm where the battery of wireless communication devices can be remotely replenished by means of microwave wir…
Energy Group-Buying with Loading Sharing for Green Cellular Networks
Jie Xu, Lingjie Duan, Rui Zhang
In the emerging hybrid electricity market, mobile network operators (MNOs) of cellular networks can make day-ahead energy purchase commitments at low prices and real-time flexible…
Millimeter Wave MIMO with Lens Antenna Array: A New Path Division Multiplexing Paradigm
Yong Zeng, Rui Zhang
Millimeter wave (mmWave) communication is a promising technology for 5G cellular systems. To compensate for the severe path loss in mmWave systems, large antenna arrays are general…
Cognitive Wireless Powered Network: Spectrum Sharing Models and Throughput Maximization
Seunghyun Lee, Rui Zhang
The recent advance in radio-frequency (RF) wireless energy transfer (WET) has motivated the study of wireless powered communication network (WPCN), in which distributed wireless de…
Placement Optimization of Energy and Information Access Points in Wireless Powered Communication Networks
Suzhi Bi, Rui Zhang
The applications of wireless power transfer technology to wireless communications can help build a wireless powered communication network (WPCN) with more reliable and sustainable…
Multiuser Wireless Power Transfer via Magnetic Resonant Coupling: Performance Analysis, Charging Control, and Power Region Characterization
Mohammad R. Vedady Moghadam, Rui Zhang
Magnetic resonant coupling (MRC) is an efficient method for realizing the near-field wireless power transfer (WPT). Although the MRC enabled WPT (MRC-WPT) with a single pair of tra…
Wireless Power Charging Control in Multiuser Broadband Networks
Suzhi Bi, Rui Zhang
Recent advances in wireless power transfer (WPT) technology provide a cost-effective solution to charge wireless devices remotely without disruption to the use. In this paper, we p…
Constant Envelope Precoding with Adaptive Receiver Constellation in MISO Fading Channel
Shuowen Zhang, Rui Zhang, Teng Joon Lim
Constant envelope (CE) precoding is an appealing transmission technique which enables the realization of high power amplifier (PA) efficiency. For CE precoding in a single-user mul…
Multiuser Charging Control in Wireless Power Transfer via Magnetic Resonant Coupling
Mohammad R. Vedady Moghadam, Rui Zhang
Magnetic resonant coupling (MRC) is a practically appealing method for realizing the near-field wireless power transfer (WPT). The MRC-WPT system with a single pair of transmitter…
Optimized Uplink Transmission in Multi-Antenna C-RAN with Spatial Compression and Forward
Liang Liu, Rui Zhang
Massive MIMO and C-RAN are two promising techniques for implementing future wireless communication systems, where a large number of antennas are deployed either being co-located at…
Multiuser MIMO Wireless Energy Transfer With Coexisting Opportunistic Communication
Jie Xu, Suzhi Bi, Rui Zhang
This letter considers spectrum sharing between a primary multiuser multiple-input multiple-output (MIMO) wireless energy transfer (WET) system and a coexisting secondary point-to-p…
A General Utility Optimization Framework for Energy Harvesting Based Wireless Communications
Hang Li, Jie Xu, Rui Zhang +1
In recent years, wireless communication systems are expected to achieve more cost-efficient and sustainable operations by replacing conventional fixed power supplies such as batter…