Robust beamforming and power splitting design in MISO SWIPT downlink system

2016 ◽  
Vol 10 (6) ◽  
pp. 691-698 ◽  
Author(s):  
Zheng Chu ◽  
Weichen Xiang ◽  
Zhengyu Zhu ◽  
Jamal Hussein
Keyword(s):  
Power Splitting ◽  
Robust Beamforming ◽  
Downlink System

scholarly journals Robust Beamforming Design for Secure V2X Downlink System with Wireless Information and Power Transfer under a Nonlinear Energy Harvesting Model

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3294 ◽  
Author(s):  
Shidang Li ◽  
Chunguo Li ◽  
Weiqiang Tan ◽  
Baofeng Ji ◽  
Luxi Yang
Keyword(s):  
Energy Harvesting ◽  
Traffic Safety ◽  
Optimization Problem ◽  
Optimal Solution ◽  
Base Station ◽  
Power Splitting ◽  
Power Transfer ◽  
Vehicular Communication ◽  
Downlink System ◽  
Nonlinear Energy

Vehicle to everything (V2X) has been deemed a promising technology due to its potential to achieve traffic safety and efficiency. This paper considers a V2X downlink system with a simultaneous wireless information and power transfer (SWIPT) system where the base station not only conveys data and energy to two types of wireless vehicular receivers, such as one hybrid power-splitting vehicular receiver, and multiple energy vehicular receivers, but also prevents information from being intercepted by the potential eavesdroppers (idle energy vehicular receivers). Both the base station and the energy vehicular receivers are equipped with multiple antennas, whereas the information vehicular receiver is equipped with a single antenna. In particular, the imperfect channel state information (CSI) and the practical nonlinear energy harvesting (EH) model are taken into account. The non-convex optimization problem is formulated to maximize the minimum harvested energy power among the energy vehicular receivers satisfying the lowest harvested energy power threshold at the information vehicular receiver and secure vehicular communication requirements. In light of the intractability of the optimization problem, the semidefinite relaxation (SDR) technique and variable substitutions are applied, and the optimal solution is proven to be tight. A number of results demonstrate that the proposed robust secure beamforming scheme has better performance than other schemes.

Outage Constrained Robust Beamforming and Power Splitting for Secure MISO SWIPT Channel

2017 ◽  
Vol 6 (6) ◽  
pp. 826-829 ◽  
Author(s):  
Hehao Niu ◽  
Bangning Zhang ◽  
Daoxing Guo
Keyword(s):  
Power Splitting ◽  
Robust Beamforming

Robust Beamforming and Power Splitting for Secure CR Network with Practical Energy Harvesting

2019 ◽  
Vol E102.B (8) ◽  
pp. 1547-1553
Author(s):  
Lei NI ◽  
Xinyu DA ◽  
Hang HU ◽  
Miao ZHANG ◽  
Hehao NIU
Keyword(s):  
Energy Harvesting ◽  
Power Splitting ◽  
Robust Beamforming

scholarly journals Joint Robust Beamforming and Power-Splitting Ratio Design in SWIPT-Based Cooperative NOMA Systems With CSI Uncertainty

2019 ◽  
Vol 68 (3) ◽  
pp. 2386-2400 ◽  
Author(s):  
Yi Yuan ◽  
Peng Xu ◽  
Zheng Yang ◽  
Zhiguo Ding ◽  
Qianbin Chen
Keyword(s):  
Power Splitting ◽  
Robust Beamforming ◽  
Splitting Ratio
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