Reference : Boosting SWIPT via Symbol-Level Precoding

	Document type :	Scientific congresses, symposiums and conference proceedings : Unpublished conference
	Discipline(s) :	Engineering, computing & technology : Computer science
	Focus Areas :	Security, Reliability and Trust
	To cite this reference:	http://hdl.handle.net/10993/43218

Title :	Boosting SWIPT via Symbol-Level Precoding
Language :	English
Author, co-author :	Gautam, Sumit [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Krivochiza, Jevgenij [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Haqiqatnejad, Alireza [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Chatzinotas, Symeon [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Ottersten, Björn [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Publication date :	29-May-2020
Number of pages :	5
Peer reviewed :	Yes
On invitation :	No
Audience :	International
Event name :	21st IEEE INTERNATIONAL WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS (IEEE SPAWC 2020)
Event date :	from 26-05-2020 to 29-05-2020
Event organizer :	IEEE
Event place (city) :	Virtual Conference
Keywords :	[en] Multi-user MISO (MU-MISO) ; Symbol Level Precoding (SLP) ; Simultaneous Wireless Information and Power Transmission (SWIPT)
Abstract :	[en] In this paper, we investigate a simultaneous wireless information and power transmission (SWIPT) system, wherein a single multi-antenna transmitter serves multiple single-antenna users which employ the power-splitting (PS) receiver architecture. We formulate a Symbol-Level Precoding (SLP) based transmit power minimization problem dependent on the minimum signal-to-interference-plus-noise ratio (SINR) and energy harvesting (EH) thresholds. We solve the corresponding non-negative convex quadratic optimization problem per time frame of transmitted symbols and study the benefits of proposed design under Zero-Forcing (ZF) Precoding, Direct Demand SLP (DD-SLP), and Squared-Root Demand SLP (RD-SLP) techniques. A static PS-ratio is fixed according to the SINR and EH demands to enable the segregation of intended received signals for information decoding (ID) and EH, respectively. Numerical results show the property conservation of SINR-enhancement via SLP at the ID unit while increasing the harvested energy at each of the end-users.
Research centres :	Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM
Funders :	Fonds National de la Recherche - FnR
Name of the research project :	FNR11481283, R-AGR-0700-10-V, C16/IS/11332341
Target :	Researchers ; Professionals ; Students ; General public
Permalink :	http://hdl.handle.net/10993/43218
FnR project :	FnR ; FNR11037543 > Bjorn Ottersten > InWIPNET > Integrated Wireless Information and Power Networks > 01/10/2016 > 30/09/2020 > 2015

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