Robust beamforming based on transmit power analysis for multiuser multiple-input–single-output interference channels with energy harvesting

In this study, the authors study the robust transmit beamforming and receive power splitting design for simultaneous wireless information and power transfer in multiuser multiple-input–single-output interference channel with imperfect channel-state information at the transmitter. Following the worst...

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Veröffentlicht in:IET communications Jg. 10; H. 10; S. 1221 - 1228
Hauptverfasser: Zhu, Zhengyu, Wang, Zhongyong, Chu, Zheng, Gao, Xiangchuan, Zhang, Yanbin, Cui, Jianhua
Format: Journal Article
Sprache:Englisch
Veröffentlicht: The Institution of Engineering and Technology 01.07.2016
Schlagworte:
Approximation
approximation theory
array signal processing
average total transmit power minimisation
Beamforming
Channels
Constraint modelling
CSIT
Energy harvesting
energy harvesting constraints
imperfect channel‐state information‐at‐the‐transmitter
inductive power transmission
Interference
Lagrangian multiplier method
mathematical programming
multiuser multiple‐input‐single‐output interference channels
Optimization
Programming
radio transmitters
radiofrequency interference
receive power splitting design
relaxed semidefinite programming problem
robust transmit beamforming
signal‐to‐interference‐and‐noise ratio constraints
simultaneous wireless information‐and‐power transfer
SWIPT
transmit power analysis
wireless channels
approximation theory
energy harvesting constraints
CSIT
energy harvesting
mathematical programming
average total transmit power minimisation
transmit power analysis
radiofrequency interference
multiuser multiple-input-single-output interference channels
SWIPT
imperfect channel-state information-at-the-transmitter
simultaneous wireless information-and-power transfer
signal-to-interference-and-noise ratio constraints
relaxed semidefinite programming problem
radio transmitters
wireless channels
inductive power transmission
Lagrangian multiplier method
array signal processing
robust transmit beamforming
receive power splitting design
ISSN:1751-8628, 1751-8636
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung:In this study, the authors study the robust transmit beamforming and receive power splitting design for simultaneous wireless information and power transfer in multiuser multiple-input–single-output interference channel with imperfect channel-state information at the transmitter. Following the worst-case model, they minimise the average total transmit power subject to a set of energy harvesting constraints and signal-to-interference-and-noise ratio constraints. On the basis of the Lagrangian multiplier method, they propose a robust design method based on tight bounds that is able to achieve an approximate optimum. To reduce the complexity, they transform this original problem into a relaxed semi-definite programming problem based on loose bounds, which can be solved efficiently. It is shown from simulation results that their proposed methods outperform the non-robust scheme.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1751-8628
1751-8636
DOI:10.1049/iet-com.2015.0878