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On Limits of Constructive Interference in Backscatter Systems
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Architecture and Computer Communication.
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Architecture and Computer Communication.
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Architecture and Computer Communication.ORCID iD: 0000-0002-2586-8573
2017 (English)In: Global Internet of Things Summit (GIoTS), 2017, IEEE, 2017, p. 178-182Conference paper, Published paper (Other academic)
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
IEEE, 2017. p. 178-182
Keywords [en]
Interference, Backscatter, Receivers, Radio transmitters, Radiofrequency identification
National Category
Telecommunications Communication Systems Embedded Systems
Identifiers
URN: urn:nbn:se:uu:diva-335569DOI: 10.1109/GIOTS.2017.8016241ISI: 000425861800032ISBN: 978-1-5090-5873-0 (electronic)OAI: oai:DiVA.org:uu-335569DiVA, id: diva2:1163393
Conference
Global Internet of Things Summit (GIoTS), Geneva, Switzerland, June 06-09, 2017
Funder
Swedish Energy AgencyAvailable from: 2017-12-06 Created: 2017-12-06 Last updated: 2018-05-24Bibliographically approved

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Carlos, Pérez PenichetHermans, FrederikVoigt, Thiemo

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