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Article: Wirelessly Powered Backscatter Communications: Waveform Design and SNR-Energy Tradeoff
Title | Wirelessly Powered Backscatter Communications: Waveform Design and SNR-Energy Tradeoff |
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Authors | |
Keywords | Backscatter communications SNR-energy tradeoff waveform design wireless power transfer |
Issue Date | 2017 |
Publisher | Institute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4234 |
Citation | IEEE Communications Letters, 2017, v. 21 n. 10, p. 2234-2237 How to Cite? |
Abstract | This letter shows that wirelessly powered backscatter communications is subject to a fundamental tradeoff between the harvested energy at the tag and the reliability of the backscatter communication, measured in terms of SNR at the reader. Assuming the RF transmit signal is a multisine waveform adaptive to the channel state information, we derive a systematic approach to optimize the transmit waveform weights (amplitudes and phases) in order to enlarge as much as possible the SNR-energy region. Performance evaluations confirm the significant benefits of using multiple frequency components in the adaptive transmit multisine waveform to exploit the nonlinearity of the rectifier and a frequency diversity gain. © 1997-2012 IEEE. |
Persistent Identifier | http://hdl.handle.net/10722/246076 |
ISSN | 2023 Impact Factor: 3.7 2023 SCImago Journal Rankings: 1.887 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Clerckx, B | - |
dc.contributor.author | Zawawi, Z | - |
dc.contributor.author | Huang, K | - |
dc.date.accessioned | 2017-09-18T02:21:59Z | - |
dc.date.available | 2017-09-18T02:21:59Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | IEEE Communications Letters, 2017, v. 21 n. 10, p. 2234-2237 | - |
dc.identifier.issn | 1089-7798 | - |
dc.identifier.uri | http://hdl.handle.net/10722/246076 | - |
dc.description.abstract | This letter shows that wirelessly powered backscatter communications is subject to a fundamental tradeoff between the harvested energy at the tag and the reliability of the backscatter communication, measured in terms of SNR at the reader. Assuming the RF transmit signal is a multisine waveform adaptive to the channel state information, we derive a systematic approach to optimize the transmit waveform weights (amplitudes and phases) in order to enlarge as much as possible the SNR-energy region. Performance evaluations confirm the significant benefits of using multiple frequency components in the adaptive transmit multisine waveform to exploit the nonlinearity of the rectifier and a frequency diversity gain. © 1997-2012 IEEE. | - |
dc.language | eng | - |
dc.publisher | Institute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4234 | - |
dc.relation.ispartof | IEEE Communications Letters | - |
dc.rights | ©2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | - |
dc.subject | Backscatter communications | - |
dc.subject | SNR-energy tradeoff | - |
dc.subject | waveform design | - |
dc.subject | wireless power transfer | - |
dc.title | Wirelessly Powered Backscatter Communications: Waveform Design and SNR-Energy Tradeoff | - |
dc.type | Article | - |
dc.identifier.email | Huang, K: huangkb@eee.hku.hk | - |
dc.identifier.authority | Huang, K=rp01875 | - |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1109/LCOMM.2017.2716341 | - |
dc.identifier.scopus | eid_2-s2.0-85021797363 | - |
dc.identifier.hkuros | 279209 | - |
dc.identifier.volume | 21 | - |
dc.identifier.issue | 10 | - |
dc.identifier.spage | 2234 | - |
dc.identifier.epage | 2237 | - |
dc.identifier.isi | WOS:000412626700031 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 1089-7798 | - |