"Efficient Multiple Charging Base Stations Assignment for Far-Field Wir" by Qiuyu Sha, Xilong Liu et al.
 

Efficient Multiple Charging Base Stations Assignment for Far-Field Wireless-Charging in Green IoT

Document Type

Conference Proceeding

Publication Date

1-1-2021

Abstract

Owing to the development of Internet of Things (IoT) and Artificial Intelligence (AI) technology, powering IoT devices has become a dire problem that mobile IoT devices need a more portable way to be charged. Based on our previous research on green IoT, the far-field Wireless Power Transfer (WPT) powered by green energy can alleviate this problem. Although many existing works on Multi-Base Station Joint Charging Schemes have gained remarkable results, the aggregation of multiple power waves cannot be explicitly described by the traditional 1-dimensional model suggested by Friis Formula. The 2-dimensional model called vector model can solve this problem by clearly indicating how the multiple power waves aggregate at an IoT device in the form of a 2-dimensional vector. In this work, an Adjusting Phase (AP) method based on the vector model is designed to enhance the value of aggregated power waves. In addition, we propose the Greedy chArging Grouping Algorithm (GAGA) to ensure that the charging mission will be completed on time and the risk of running out of power can be reduced. Finally, we validate the performance of the proposed algorithm in comparison with the state-of-the-art solutions through extensive simulations.

Identifier

85184357271 (Scopus)

Publication Title

Proceedings IEEE Global Communications Conference Globecom

External Full Text Location

https://doi.org/10.1109/GLOBECOM46510.2021.9685825

e-ISSN

25766813

ISSN

23340983

Grant

62002312

Fund Ref

National Natural Science Foundation of China

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