SWIPT in MISO Multicasting Systems

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SWIPT in MISO Multicasting Systems

Khandaker, BMRA; Wong, K-K; (2014) SWIPT in MISO Multicasting Systems. IEEE Wireless Commun. Letters , 3 277-280 . 10.1109/WCL.2014.030514.140057. Green open access

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Abstract

This letter considers simultaneous wireless information and power transfer (SWIPT) in multiple-input single-output (MISO) multicasting systems where each receiver is equipped with a power splitting device and can receive both information and energy from the base station (BS) continuously at the same time. We investigate the joint multicast transmit beamforming and receive power splitting problem for minimizing the transmit power of the BS subject to signal-to-noise ratio (SNR) and energy harvesting constraints at each receiver. Both scenarios of perfect and imperfect channel state information (CSI) at the BS are studied. Due to non convexity of the problems, we use semidefinite relaxation (SDR) technique to solve the problems. Interestingly, we show that the SDR is in fact tight in certain scenarios

Type:	Article
Title:	SWIPT in MISO Multicasting Systems
Open access status:	An open access version is available from UCL Discovery
DOI:	10.1109/WCL.2014.030514.140057
Publisher version:	http://dx.doi.org/10.1109/WCL.2014.030514.140057
Language:	English
Additional information:	This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/
UCL classification:	UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI:	https://discovery.ucl.ac.uk/id/eprint/1430670