SWIPT in MISO multicasting systems

Muhammad R. A. Khandaker; Kai-Kit Wong

doi:10.1109/WCL.2014.030514.140057

SWIPT in MISO multicasting systems

Muhammad R. A. Khandaker, Kai-Kit Wong

Research output: Contribution to journal › Article › peer-review

142 Citations (Scopus)

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.

Original language	English
Pages (from-to)	277-280
Number of pages	4
Journal	IEEE Wireless Communications Letters
Volume	3
Issue number	3
DOIs	https://doi.org/10.1109/WCL.2014.030514.140057
Publication status	Published - Jun 2014

Keywords

beamforming
multicasting
power splitting
SWIPT

ASJC Scopus subject areas

Control and Systems Engineering
Physics and Astronomy (miscellaneous)
Electrical and Electronic Engineering

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10.1109/WCL.2014.030514.140057

Cite this

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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.",

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AB - 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.

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SWIPT in MISO multicasting systems

Abstract

Keywords

ASJC Scopus subject areas

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