Multi-carrier backscatter communication system for concurrent wireless and batteryless sensing

Nitish Rajoria, Hiromu Kamei, Jin Mitsugi, Yuusuke Kawakita, Haruhisa Ichikawa

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Wireless and batteryless sensing has recently attracted significant attention of researchers in IoT and WSN applications. It turns out to be more challenging when simultaneous data acquisition from multiple sensors is required. This paper introduces a non-orthogonal multiple access technique MSMA, using extremely simple wireless and batteryless sensor tags and a reader to support concurrent streaming from multiple sensors. By simultaneously handling non-orthogonal subcarriers, produced either by multiple or single sensor tag, it can realize concurrent sensor data streaming, which can be used in health monitoring of machinery and civil structures. The paper explains the two primary challenges in MSMA, the optimal assignment of subcarrier frequencies and the unavoidable harmonics from one subcarrier to others. Since the mutual interference among subcarriers is unevenly distributed over the available frequency band, random allocation of subcarrier frequencies may result in degraded system performance. Results show that the interference can be canceled out with the signal processing technique and the system communication capacity can be increased significantly with a proposed heuristic approach compared to random allocation of subcarrier frequencies to the sensor tags.

本文言語English
ホスト出版物のタイトルProceedings of the 2017 International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2017
出版社Institute of Electrical and Electronics Engineers Inc.
ページ1078-1082
ページ数5
ISBN(電子版)9781509044412
DOI
出版ステータスPublished - 2018 2 21
イベント2nd IEEE International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2017 - Chennai, India
継続期間: 2017 3 222017 3 24

出版物シリーズ

名前Proceedings of the 2017 International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2017
2018-January

Other

Other2nd IEEE International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2017
CountryIndia
CityChennai
Period17/3/2217/3/24

ASJC Scopus subject areas

  • Computer Science Applications
  • Media Technology
  • Computer Networks and Communications
  • Signal Processing
  • Health Informatics

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