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A joint power and i...
A joint power and information transfer system using retransmissions
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- Makki, Behrooz, 1980 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Svensson, Tommy, 1970 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Zorzi, M. (author)
- Università Degli Studi di Padova,University of Padua
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(creator_code:org_t)
- ISBN 9781467398145
- 2016
- 2016
- English.
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In: IEEE Wireless Communications and Networking Conference, WCNC. - 1525-3511. - 9781467398145 ; 2016-September, s. 7565010-
- Related links:
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http://dx.doi.org/10...
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Abstract
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- In this paper, we develop a green joint power and information transfer system. To guarantee reliable communication, we implement hybrid automatic repeat request (HARQ) feedback both in the power and information transmission phases. Moreover, with a limit on the packet transmission delay, we derive the optimal power allocation minimizing the energy-constrained outage probability. The simulation and analytical results indicate that the diversity gain of the joint power and information transfer system is the same as the diversity gain of the conventional non-green information transfer systems. Also, the implementation of HARQ improves the power efficiency significantly. For instance, consider a Rayleigh fading channel, outage probability 10-3, code rate 1 nats-per-channel-use and the case where the receiver requires to receive 0.1 Joule-per-channel-use energy per codeword length from the transmitter to process the information. Then, with a maximum of two retransmissions in the power and information transfer phases, the HARQ reduces the average required energy by 4 dB, compared to the open-loop communication setup.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Publication and Content Type
- kon (subject category)
- ref (subject category)
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