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On the feasibility of wireless energy transfer using massive antenna arrays in Rician channels
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-5991-3918
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-7599-4367
2015 (English)In: 16th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2015, Institute of Electrical and Electronics Engineers (IEEE), 2015, p. 46-50Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we examine the feasibility of wireless energy transfer (WET) using arrays with multiple antennas. Specifically, we compute the probability of outage in energy transfer over a Rician fading channel when the base station (BS) with multiple antennas transfers energy to a wireless sensor node (WSN). Through our analytical and numerical results, we prove that by deploying more antennas at the BS, the range of WET can be increased while maintaining a target outage probability. We observe that the use of massive antenna arrays at the BS results into huge savings of radiated energy. We show that for typical energy levels used in WET, the outage performance with imperfect channel state information (CSI) is essentially the same as that obtained based on perfect CSI. We also observe that a strong line-of-sight component between the BS and the WSN lowers the probability of outage in energy transfer.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2015. p. 46-50
Series
IEEE International Workshop on Signal Processing Advances in Wireless Communications, ISSN 2325-3789
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:liu:diva-128669DOI: 10.1109/SPAWC.2015.7226997ISI: 000380547100010ISBN: 978-1-4799-1931-4 (electronic)ISBN: 978-1-4799-1932-1 (print)ISBN: 978-1-4799-1930-7 OAI: oai:DiVA.org:liu-128669DiVA, id: diva2:931438
Conference
16th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2015. June 28 2015-July 1 2015, Stockholm
Available from: 2016-05-27 Created: 2016-05-27 Last updated: 2017-10-25

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Kashyap, SalilBjörnson, EmilLarsson, Erik G

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