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On limits of constructive interference in backscatter systems
Uppsala University, Sweden.
Uppsala University, Sweden.
RISE - Research Institutes of Sweden, ICT, SICS. Uppsala University, Sweden.
2017 (English)In: GIoTS 2017 - Global Internet of Things Summit, Proceedings, 2017Conference paper, Published paper (Refereed)
Abstract [en]

Backscatter communication reduces the energy consumption of resource-constrained sensors and actuators by several orders of magnitude as it avoids the resource-consuming need to generate a radio wave. Many backscatter systems and applications suffer from low communication range. By exploiting the collective power of several tags that transmit the same data simultaneously, constructive interference may help to remedy this problem and increase the communication range. When several tags backscatter the same signal simultaneously it is not necessarily true that constructive interference occurs. As our theoretical results and previous work indicate the interference might also be destructive. Our experimental results on real hardware suggest that exploiting constructive interference to increase the communication range requires careful coordination which is difficult in decentralized settings.

Place, publisher, year, edition, pages
2017.
Keyword [en]
Energy utilization, Internet of things, Communication range, Constrained sensors, Constructive interference, Orders of magnitude, Backscattering
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-33207DOI: 10.1109/GIOTS.2017.8016241Scopus ID: 2-s2.0-85029322903ISBN: 9781509058730 OAI: oai:DiVA.org:ri-33207DiVA: diva2:1179219
Conference
2017 Global Internet of Things Summit, GIoTS 2017, 6 June 2017 through 9 June 2017
Note

Funding details: Energimyndigheten; Funding details: Sweden-Japan Foundation

Available from: 2018-01-31 Created: 2018-01-31 Last updated: 2018-01-31Bibliographically approved

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