Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 2017 International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2017 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1078-1082 |
| Number of pages | 5 |
| Volume | 2018-January |
| ISBN (Electronic) | 9781509044412 |
| DOIs | |
| Publication status | Published - 2018 Feb 21 |
| Event | 2nd IEEE International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2017 - Chennai, India Duration: 2017 Mar 22 → 2017 Mar 24 |
Other
| Other | 2nd IEEE International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2017 |
|---|---|
| Country | India |
| City | Chennai |
| Period | 17/3/22 → 17/3/24 |
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ASJC Scopus subject areas
- Computer Science Applications
- Media Technology
- Computer Networks and Communications
- Signal Processing
- Health Informatics
Cite this
Multi-carrier backscatter communication system for concurrent wireless and batteryless sensing. / Rajoria, Nitish; Kamei, Hiromu; Mitsugi, Jin; Kawakita, Yuusuke; Ichikawa, Haruhisa.
Proceedings of the 2017 International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2017. Vol. 2018-January Institute of Electrical and Electronics Engineers Inc., 2018. p. 1078-1082.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Multi-carrier backscatter communication system for concurrent wireless and batteryless sensing
AU - Rajoria, Nitish
AU - Kamei, Hiromu
AU - Mitsugi, Jin
AU - Kawakita, Yuusuke
AU - Ichikawa, Haruhisa
PY - 2018/2/21
Y1 - 2018/2/21
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=85046348530&partnerID=8YFLogxK
U2 - 10.1109/WiSPNET.2017.8299928
DO - 10.1109/WiSPNET.2017.8299928
M3 - Conference contribution
AN - SCOPUS:85046348530
VL - 2018-January
SP - 1078
EP - 1082
BT - Proceedings of the 2017 International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2017
PB - Institute of Electrical and Electronics Engineers Inc.
ER -