Paper Info
Title
Passive Relaying Game For Wireless Powered Internet Of Things In Backscatter-Aided Hybrid Radio Networks
Abstract
In this paper, we consider wireless powered Internet of Things (IoT) by a power beacon station (PBS). Each IoT device can be a sensor node that has continuous data transmission using a dual-mode radio, which operates in either active radio frequency (RF) communications or passive backscatter communications. The flexibility in the radio mode switching provides an additional degree of freedom to improve the overall network performance. To exploit the radio's diversity gain, we formulate the sum throughput maximization by jointly optimizing the transmission strategy of each node, the time allocation, and beamforming strategies of the PBS. Besides, capitalizing the fact that two nodes in different modes can complement each other, we propose the passive relaying scheme to exploit the user's cooperation gain that leverages the passive radios to relay for active RF communications. Though the backscatter-aided throughput maximization is nonconvex due to the coupling among different nodes, we design the passive relaying game to balance energy harvesting and relay performance. The simulation results verify that it can significantly enhance the sum throughput of a hybrid radio network, along with the optimal time allocation and beamforming strategies at the PBS.
Year
DOI
Venue
2019
10.1109/JIOT.2019.2924977
IEEE INTERNET OF THINGS JOURNAL
Keywords
Field
DocType
Hybrid radio network, Internet of Things (IoT), relay communications, wireless backscatter, wireless power transfer
Sensor node,Diversity gain,Beamforming,Wireless,Data transmission,Computer science,Computer network,Radio frequency,Throughput,Network performance
Journal
Volume
Issue
ISSN
6
5
2327-4662
Citations 
PageRank 
References 
1
0.35
0
Authors
5
Name
Order
Citations
PageRank
Jing Xu17520.03
Jiachen Li232.43
Gong Shimin342434.89
Kun Zhu422522.46
Niyato Dusit59486547.06