• Publications
  • Influence
Throughput Maximization in Wireless Powered Communication Networks
TLDR
This paper studies the newly emerging wireless powered communication network in which one hybrid access point (H-AP) with constant power supply coordinates the wireless energy/information transmissions to/from a set of distributed users that do not have other energy sources. Expand
  • 1,022
  • 228
MIMO Broadcasting for Simultaneous Wireless Information and Power Transfer
TLDR
We study a multiple-input multiple-output (MIMO) wireless broadcast system consisting of three nodes, where one receiver harvests energy and another receiver decodes information separately from the signals sent by a common transmitter, and all the transmitter and receivers may be equipped with multiple antennas. Expand
  • 1,411
  • 196
Intelligent Reflecting Surface Enhanced Wireless Network via Joint Active and Passive Beamforming
  • Qingqing Wu, R. Zhang
  • Computer Science, Mathematics
  • IEEE Transactions on Wireless Communications
  • 6 October 2018
TLDR
In this paper, we study an IRS-aided single-cell wireless system where one IRS is deployed to assist in the communications between a multi-antenna access point (AP) and multiple single-Antenna users. Expand
  • 701
  • 124
  • PDF
MIMO Broadcasting for Simultaneous Wireless Information and Power Transfer
  • R. Zhang, C. Ho
  • Computer Science, Mathematics
  • IEEE Global Telecommunications Conference…
  • 25 May 2011
TLDR
This paper studies the performance limits of multi-antenna wireless broadcasting systems for simultaneous information and power (energy) transfer, where the information receiver and energy receiver are separated and see different channels from the transmitter. Expand
  • 846
  • 99
  • PDF
Wireless communications with unmanned aerial vehicles: opportunities and challenges
TLDR
An overview of UAV-aided wireless communications, by introducing the basic networking architecture and main channel characteristics, highlighting the key design considerations as well as the new opportunities to be exploited. Expand
  • 1,735
  • 87
  • PDF
Exploiting Multi-Antennas for Opportunistic Spectrum Sharing in Cognitive Radio Networks
TLDR
We study this fundamental tradeoff from an information-theoretic perspective by characterizing the secondary user's channel capacity under both its own transmit-power constraint as well as a set of interference-power constraints each imposed at one of the primary receivers in a cognitive radio network, where an interesting "interference diversity" effect can be exploited. Expand
  • 853
  • 77
  • PDF
Wireless Information and Power Transfer: Architecture Design and Rate-Energy Tradeoff
TLDR
We propose a general receiver operation, namely, dynamic power splitting (DPS), which splits the received signal with adjustable power ratio for energy harvesting and information decoding, separately. Expand
  • 1,022
  • 73
Joint Trajectory and Communication Design for Multi-UAV Enabled Wireless Networks
TLDR
We propose an efficient iterative algorithm for solving it by applying the block coordinate descent and successive convex optimization techniques, which is guaranteed to converge to at least a locally optimal solution. Expand
  • 691
  • 68
  • PDF
Throughput Maximization for UAV-Enabled Mobile Relaying Systems
TLDR
We study the throughput maximization problem in mobile relaying systems by optimizing the source/relay transmit power along with the relay trajectory, subject to practical mobility constraints. Expand
  • 654
  • 64
  • PDF
Energy Minimization for Wireless Communication With Rotary-Wing UAV
  • Y. Zeng, J. Xu, R. Zhang
  • Computer Science, Mathematics
  • IEEE Transactions on Wireless Communications
  • 6 April 2018
TLDR
We propose a new path discretization method to transform the original problem into a discretized equivalent with a finite number of optimization variables, for which we obtain a high-quality suboptimal solution by applying the successive convex approximation technique. Expand
  • 308
  • 60
  • PDF
...
1
2
3
4
5
...