On Maximizing Min Source Rate in Power Beacon Assisted IoTs Networks

Authors

Tengjiao He, Jinan UniversityFollow
Kwan-Wu Chin, University of WollongongFollow
Sieteng Soh, Curtin University of Technology, Curtin UniversityFollow
Changlin Yang, Zhongyuan University of TechnologyFollow
Jinming Wen

RIS ID

146491

Publication Details

T. He, K. Chin, S. Soh, C. Yang & J. Wen, "On Maximizing Min Source Rate in Power Beacon Assisted IoTs Networks," IEEE Transactions on Vehicular Technology, vol. 69, (10) pp. 11880-11892, 2020.

Abstract

© 1967-2012 IEEE. Future Internet of Things (IoTs) networks will have Radio Frequency (RF)-energy harvesting devices powered by a Power Beacon (PB). These devices will be tasked with collection and transmission of data over multiple hops to a fusion center. In this paper, our aim is to maximize the minimum data gathering rate of devices acting as sources. We formulate a Mixed Integer Linear Program (MILP) to compute the optimal max-min rate of sources by deciding for each slot the devices to be charged, a PB's transmission power, the amount of data routed over each link, and the active time of transmitting links. We also present a novel distributed protocol called Distributed Charging and Fairness Gathering (D-CFG) that is used by IoT devices to request charging from a PB and to ensure they forward data in a fair manner. Our results show that D-CFG achieves 57.1% of the theoretical max-min rate computed by the MILP.