Simultaneous Wireless Information and Power Transfer for Internet of Things Sensor Networks SCIE SCOPUS

Cited 35 time in WEB OF SCIENCE Cited 37 time in Scopus
Title
Simultaneous Wireless Information and Power Transfer for Internet of Things Sensor Networks
Author(s)
Chae, Sung Ho; Jeong, Cheol; Lim, Sung Hoon
Publication Year
2018-08
Abstract
In this paper, we study simultaneous wireless information and power transfer (SWIPT) for Internet of Things (IoT) sensor networks. The transmitters (e.g., access point) employ hybrid beamforming and each IoT receiver adopts a power splitting (PS) method that divides the received signal into two parts for information recovery and energy harvesting. We propose a novel strategy for SWIPT in which the transmitters have the option to either send a private or a common message. The private message is recovered only by a designated IoT receiver while common messages are recovered by all the receivers. While requiring the receivers to recover a common message results in additional rate constraints, the overall system performance benefits by mitigating interference. We propose SWIPT schemes that minimize the total transmit power by properly selecting message configurations, designing hybrid beamforming vectors, and adjusting the PS ratio at the receivers to satisfy the individual rate and energy harvesting constraints. In particular, we develop tractable and efficient two-stage algorithms that, in the first stage determine the message configurations and in the second stage find the beamforming vectors (for both analog and digital components). Numerical simulations demonstrate that the proposed schemes significantly outperform conventional schemes that transmit private messages only using digital beamforming.
ISSN
2327-4662
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/863
DOI
10.1109/JIOT.2018.2825334
Bibliographic Citation
IEEE INTERNET OF THINGS JOURNAL, v.5, no.4, pp.2829 - 2843, 2018
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Subject
MISO INTERFERENCE CHANNEL; GAUSSIAN INTERFERENCE; ENERGY-TRANSFER; CAPACITY REGION; HYBRID ANALOG; SWIPT SYSTEMS; SUM CAPACITY; 5G; OPTIMIZATION; TECHNOLOGY
Keywords
Hybrid beamforming; interference channel; interference decoding; Internet of Things (IoT); semidefinite programming (SDP); sensor networks; simultaneous wireless information and power transfer (SWIPT)
Type
Article
Language
English
Document Type
Article
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse