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...

Celý popis

Uloženo v:

Podrobná bibliografie
Vydáno v:	IET communications Ročník 10; číslo 10; s. 1221 - 1228
Hlavní autoři:	Zhu, Zhengyu, Wang, Zhongyong, Chu, Zheng, Gao, Xiangchuan, Zhang, Yanbin, Cui, Jianhua
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	The Institution of Engineering and Technology 01.07.2016
Témata:	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
On-line přístup:	Získat plný text
Tagy:	Přidat tag Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!

Popis
Shrnutí:	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.
Bibliografie:	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