On the feasibility of full-duplex relaying powered by wireless energy transfer

Taneli Riihonen; Long Zhao; Mikko Vehkapera; Xiaodong Wang

doi:10.1109/SPAWC.2016.7536810

On the feasibility of full-duplex relaying powered by wireless energy transfer

Taneli Riihonen, Long Zhao, Mikko Vehkapera, Xiaodong Wang

Not published at VTT

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

6 Citations (Scopus)

Abstract

We consider a wireless two-hop downlink communication system where a grid-connected source node transmits data to a destination node with the assistance of a full-duplex (FD) relay that is powered by wireless energy harvesting. The relay splits its received signal from the first hop into two streams for energy harvesting and information decoding, respectively. Meanwhile, it also forwards the decoded information to the second hop utilizing a portion of the harvested energy. To maximize the data rate, the power splitting factor and energy consumption proportion are jointly optimized in the case of single-antenna transceivers. The analytical results are then used for studying the feasibility of full-duplex relaying and wireless energy transfer. As for the main conclusions, we note that so-called self-energy recycling gives marginal gain for the considered system and relaying at large is useful only when the direct source-to-destination link is very weak. The latter aspect is pronounced in the considered system especially due to the presence of residual full-duplex self-interference and the fact that the relay is powered by an extremely scarce source, i.e., wireless energy transfer.

Original language	English
Title of host publication	17th IEEE International Workshop on Signal Processing Advances in Wireless Communications
Subtitle of host publication	SPAWC 2016
Publisher	IEEE Institute of Electrical and Electronic Engineers
ISBN (Electronic)	978-1-5090-1749-2
ISBN (Print)	978-1-5090-1750-8
DOIs	https://doi.org/10.1109/SPAWC.2016.7536810
Publication status	Published - 9 Aug 2016
MoE publication type	A4 Article in a conference publication
Event	17th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2016 - Edinburgh, United Kingdom Duration: 3 Jul 2016 → 6 Jul 2016

Conference

Conference	17th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2016
Country/Territory	United Kingdom
City	Edinburgh
Period	3/07/16 → 6/07/16

Keywords

Decode-and-forward (DF)
energy harvesting
full duplex
power allocation
relaying
wireless power transfer

Access to Document

10.1109/SPAWC.2016.7536810

Cite this

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title = "On the feasibility of full-duplex relaying powered by wireless energy transfer",

abstract = "We consider a wireless two-hop downlink communication system where a grid-connected source node transmits data to a destination node with the assistance of a full-duplex (FD) relay that is powered by wireless energy harvesting. The relay splits its received signal from the first hop into two streams for energy harvesting and information decoding, respectively. Meanwhile, it also forwards the decoded information to the second hop utilizing a portion of the harvested energy. To maximize the data rate, the power splitting factor and energy consumption proportion are jointly optimized in the case of single-antenna transceivers. The analytical results are then used for studying the feasibility of full-duplex relaying and wireless energy transfer. As for the main conclusions, we note that so-called self-energy recycling gives marginal gain for the considered system and relaying at large is useful only when the direct source-to-destination link is very weak. The latter aspect is pronounced in the considered system especially due to the presence of residual full-duplex self-interference and the fact that the relay is powered by an extremely scarce source, i.e., wireless energy transfer.",

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author = "Taneli Riihonen and Long Zhao and Mikko Vehkapera and Xiaodong Wang",

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Riihonen, T, Zhao, L, Vehkapera, M & Wang, X 2016, On the feasibility of full-duplex relaying powered by wireless energy transfer. in 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications: SPAWC 2016., 7536810, IEEE Institute of Electrical and Electronic Engineers, 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2016, Edinburgh, United Kingdom, 3/07/16. https://doi.org/10.1109/SPAWC.2016.7536810

On the feasibility of full-duplex relaying powered by wireless energy transfer. / Riihonen, Taneli; Zhao, Long; Vehkapera, Mikko et al.
17th IEEE International Workshop on Signal Processing Advances in Wireless Communications: SPAWC 2016. IEEE Institute of Electrical and Electronic Engineers, 2016. 7536810.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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AU - Zhao, Long

AU - Vehkapera, Mikko

AU - Wang, Xiaodong

PY - 2016/8/9

Y1 - 2016/8/9

N2 - We consider a wireless two-hop downlink communication system where a grid-connected source node transmits data to a destination node with the assistance of a full-duplex (FD) relay that is powered by wireless energy harvesting. The relay splits its received signal from the first hop into two streams for energy harvesting and information decoding, respectively. Meanwhile, it also forwards the decoded information to the second hop utilizing a portion of the harvested energy. To maximize the data rate, the power splitting factor and energy consumption proportion are jointly optimized in the case of single-antenna transceivers. The analytical results are then used for studying the feasibility of full-duplex relaying and wireless energy transfer. As for the main conclusions, we note that so-called self-energy recycling gives marginal gain for the considered system and relaying at large is useful only when the direct source-to-destination link is very weak. The latter aspect is pronounced in the considered system especially due to the presence of residual full-duplex self-interference and the fact that the relay is powered by an extremely scarce source, i.e., wireless energy transfer.

AB - We consider a wireless two-hop downlink communication system where a grid-connected source node transmits data to a destination node with the assistance of a full-duplex (FD) relay that is powered by wireless energy harvesting. The relay splits its received signal from the first hop into two streams for energy harvesting and information decoding, respectively. Meanwhile, it also forwards the decoded information to the second hop utilizing a portion of the harvested energy. To maximize the data rate, the power splitting factor and energy consumption proportion are jointly optimized in the case of single-antenna transceivers. The analytical results are then used for studying the feasibility of full-duplex relaying and wireless energy transfer. As for the main conclusions, we note that so-called self-energy recycling gives marginal gain for the considered system and relaying at large is useful only when the direct source-to-destination link is very weak. The latter aspect is pronounced in the considered system especially due to the presence of residual full-duplex self-interference and the fact that the relay is powered by an extremely scarce source, i.e., wireless energy transfer.

KW - Decode-and-forward (DF)

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KW - power allocation

KW - relaying

KW - wireless power transfer

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Y2 - 3 July 2016 through 6 July 2016

ER -

On the feasibility of full-duplex relaying powered by wireless energy transfer

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