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A composite approach to self-sustainable transmissions : rethinking OFDM
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Maso, Marco, Lakshminarayana, Subhash, Quek, Tony Q. S. and Poor, H. Vincent (2014) A composite approach to self-sustainable transmissions : rethinking OFDM. IEEE Transactions on Communications, 62 (11). pp. 3904-3917. doi:10.1109/TCOMM.2014.2361124 ISSN 0090-6778.
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WRAP-composite-approach-self-sustainable-OFDM-Lakshminarayana-2014.pdf - Accepted Version - Requires a PDF viewer. Download (1693Kb) | Preview |
Official URL: http://dx.doi.org/10.1109/TCOMM.2014.2361124
Abstract
This paper proposes two novel strategies to extend the battery life of an orthogonal frequency division multiplexing (OFDM) receiver, by exploiting the concept of wireless power transfer (WPT). First a new receiver architecture is devised that does not discard the cyclic prefix (CP), but instead, exploits it to extract power from the received signal, realizing a WPT between the transmitter and the receiver. Subsequently, a flexible composite transmit strategy is designed, in which the OFDM transmitter transmits to the receiver two independent signals coexisting in the same band. It is shown that, by means of this approach, the transmitter can arbitrarily increase the power concentrated within the CP at the OFDM receiver, without increasing the redundancy of the transmission. The feasibility conditions for the self-sustainability of the transmission are derived, in terms of power consumption at the receiver, for both legacy and composite transmission. Numerical findings show that, under reasonable conditions, the amount of power carried in the CP could be made sufficient to decode the information symbols, making the transmission fully self-sustainable. The potential of the proposed approach is confirmed by the encouraging results obtained when the full self-sustainability constraint is relaxed, and partially self-sustainable OFDM transmissions are analyzed.
Item Type: | Journal Article | ||||||||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||||||
Library of Congress Subject Headings (LCSH): | Orthogonal frequency division multiplexing, Energy harvesting | ||||||||||||
Journal or Publication Title: | IEEE Transactions on Communications | ||||||||||||
Publisher: | IEEE | ||||||||||||
ISSN: | 0090-6778 | ||||||||||||
Official Date: | November 2014 | ||||||||||||
Dates: |
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Volume: | 62 | ||||||||||||
Number: | 11 | ||||||||||||
Page Range: | pp. 3904-3917 | ||||||||||||
DOI: | 10.1109/TCOMM.2014.2361124 | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Reuse Statement (publisher, data, author rights): | © 2014 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. | ||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||
Date of first compliant deposit: | 29 January 2019 | ||||||||||||
Date of first compliant Open Access: | 30 January 2019 | ||||||||||||
RIOXX Funder/Project Grant: |
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