An energy efficient joint energy beamforming and time allocation with QoS guarantee via wireless energy transfer

2016 ◽  
Author(s):  
Bo Li ◽  
Tiankui Zhang ◽  
Zhimin Zeng
Keyword(s):  
Energy Transfer ◽  
Time Allocation ◽  
Energy Efficient ◽  
Wireless Energy Transfer ◽  
Qos Guarantee ◽  
Energy Beamforming

Effect of Oscillator Jitters on Distributed Energy Beamforming for Wireless Energy Transfer

2015 ◽  
Vol 19 (11) ◽  
pp. 2045-2048 ◽  
Author(s):  
Jingrong Zhou ◽  
Qi Zhang ◽  
Quanzhong Li ◽  
Jiayin Qin
Keyword(s):  
Energy Transfer ◽  
Wireless Energy Transfer ◽  
Distributed Energy ◽  
Energy Beamforming

Developing Wireless Energy Transfer Systems Using Microwave Beams: Applications and Prospects

2001 ◽  
Vol 55 (2) ◽  
pp. 10 ◽  
Author(s):  
A. A. Konovaltsev ◽  
Yu. A. Luchaninov ◽  
M. A. Omarov ◽  
Viktoriya M. Shokalo
Keyword(s):  
Energy Transfer ◽  
Wireless Energy Transfer ◽  
Microwave Beams

scholarly journals Optimal Energy Beamforming to Minimize Transmit Power in a Multi-Antenna Wireless Powered Communication Network

Electronics ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 509
Author(s):  
Iqra Hameed ◽  
Pham-Viet Tuan ◽  
Mario R. Camana ◽  
Insoo Koo
Keyword(s):  
Communication Network ◽  
Minimization Problem ◽  
Time Allocation ◽  
Access Point ◽  
Power Minimization ◽  
Transmit Power ◽  
Optimal Energy ◽  
Single Antenna ◽  
Information Signal ◽  
Energy Beamforming

In this paper, we study the transmit power minimization problem with optimal energy beamforming in a multi-antenna wireless powered communication network (WPCN). The considered network consists of one hybrid access point (H-AP) with multiple antennae and multiple users with a single antenna each. The H-AP broadcasts an energy signal on the downlink, using energy beamforming to enhance the efficiency of the transmit energy. In this paper, we jointly optimize the downlink time allocation for wireless energy transfer (WET), the uplink time allocation for each user to send a wireless information signal to the H-AP, the power allocation to each user on the uplink, and the downlink energy beamforming vectors while controlling the transmit power at the H-AP. It is challenging to solve this non-convex complex optimization problem because it is numerically intractable and involves high computational complexity. We exploit a sequential parametric convex approximation (SPCA)-based iterative method, and propose optimal and sub-optimal solutions for the transmit power minimization problem. All the proposed schemes are verified by numerical simulations. Through the simulation results, we present the performance of the proposed schemes based on the effect of the number of transmit antennae and the number of users in the proposed WPCN. Through the performance evaluation, we show that the SPCA-based joint optimization solution performance is superior to other solutions.

scholarly journals On the Feasibility of Wireless Energy Transfer Using Massive Antenna Arrays

2016 ◽  
Vol 15 (5) ◽  
pp. 3466-3480 ◽  
Author(s):  
Salil Kashyap ◽  
Emil Bjornson ◽  
Erik G. Larsson
Keyword(s):  
Energy Transfer ◽  
Antenna Arrays ◽  
Wireless Energy Transfer
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