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Wireless information and power transfer with full duplex relaying

Zhong, C and Suraweera, HA and Zheng, G and Krikidis, I and Zhang, Z (2014) 'Wireless information and power transfer with full duplex relaying.' IEEE Transactions on Communications, 62 (10). 3447 - 3461. ISSN 0090-6778

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Abstract

© 2014 IEEE. We consider a dual-hop full-duplex relaying system, where the energy constrained relay node is powered by radio frequency signals from the source using the time-switching architecture, both the amplify-and-forward and decode-and-forward relaying protocols are studied. Specifically, we provide an analytical characterization of the achievable throughput of three different communication modes, namely, instantaneous transmission, delay-constrained transmission, and delay tolerant transmission. In addition, the optimal time split is studied for different transmission modes. Our results reveal that, when the time split is optimized, the full-duplex relaying could substantially boost the system throughput compared to the conventional half-duplex relaying architecture for all three transmission modes. In addition, it is shown that the instantaneous transmission mode attains the highest throughput. However, compared to the delay-constrained transmission mode, the throughput gap is rather small. Unlike the instantaneous time split optimization which requires instantaneous channel state information, the optimal time split in the delay-constrained transmission mode depends only on the statistics of the channel, hence, is suitable for practical implementations.

Item Type: Article
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Depositing User: Jim Jamieson
Date Deposited: 29 Jun 2015 09:02
Last Modified: 30 Jan 2019 16:18
URI: http://repository.essex.ac.uk/id/eprint/14130

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