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On Max-Min Throughput in Backscatter-Assisted Wirelessly Powered IoT

Journal Article


Abstract


  • © 2014 IEEE. Backscatter communication can potentially find wide Internet of Things (IoT) applications because of its negligible energy consumption. Traditional backscatter communication relies on either dedicated radio-frequency (RF) sources, such as RF identification readers and power beacons, or ambient RF sources, e.g., TV and cellular signals. In this article, we study a backscatter-assisted wirelessly powered IoT system where devices can backscatter when nearby devices are actively transmitting via RF. Our objective is to determine the transmission schedule for all devices that maximizes the minimum system throughput. We formulate such a scheduling problem as a linear program for both linear and random networks. A key step in the formulation is to identify the groups of devices that can simultaneously backscatter without causing interference. Simulation results show that the max-min system throughput in linear and random networks can be increased by 46 and 180 times, respectively, by using the proposed backscatter-assisted schedule as compared with the traditional time-division multiple access (TDMA).

Authors


  •   Yang, Changlin (external author)
  •   Wang, Xiaodong (external author)
  •   Chin, Kwan-Wu

Publication Date


  • 2020

Citation


  • C. Yang, X. Wang & K. Chin, "On Max-Min Throughput in Backscatter-Assisted Wirelessly Powered IoT," IEEE Internet of Things Journal, vol. 7, (1) pp. 137-147, 2020.

Scopus Eid


  • 2-s2.0-85078309240

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3678

Number Of Pages


  • 10

Start Page


  • 137

End Page


  • 147

Volume


  • 7

Issue


  • 1

Place Of Publication


  • United States

Abstract


  • © 2014 IEEE. Backscatter communication can potentially find wide Internet of Things (IoT) applications because of its negligible energy consumption. Traditional backscatter communication relies on either dedicated radio-frequency (RF) sources, such as RF identification readers and power beacons, or ambient RF sources, e.g., TV and cellular signals. In this article, we study a backscatter-assisted wirelessly powered IoT system where devices can backscatter when nearby devices are actively transmitting via RF. Our objective is to determine the transmission schedule for all devices that maximizes the minimum system throughput. We formulate such a scheduling problem as a linear program for both linear and random networks. A key step in the formulation is to identify the groups of devices that can simultaneously backscatter without causing interference. Simulation results show that the max-min system throughput in linear and random networks can be increased by 46 and 180 times, respectively, by using the proposed backscatter-assisted schedule as compared with the traditional time-division multiple access (TDMA).

Authors


  •   Yang, Changlin (external author)
  •   Wang, Xiaodong (external author)
  •   Chin, Kwan-Wu

Publication Date


  • 2020

Citation


  • C. Yang, X. Wang & K. Chin, "On Max-Min Throughput in Backscatter-Assisted Wirelessly Powered IoT," IEEE Internet of Things Journal, vol. 7, (1) pp. 137-147, 2020.

Scopus Eid


  • 2-s2.0-85078309240

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3678

Number Of Pages


  • 10

Start Page


  • 137

End Page


  • 147

Volume


  • 7

Issue


  • 1

Place Of Publication


  • United States