Simultaneous Wireless Information and Power Transfer for Decode-and-Forward MIMO Relay Communication Systems

In this paper, we investigate the simultaneous wireless information and power transfer (SWIPT) for a decode-and-forward (DF) multiple-input multiple-output (MIMO) relay system where the relay is an energy harvesting node. We consider the ideal scenario where both the energy harvesting (EH) receiver...

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Bibliographic Details
Main Authors: Benkhelifa, Fatma, Salem, Ahmed Kamal Sultan, Alouini, Mohamed-Slim
Format: Conference Proceeding
Language:English
Subjects:
Energy harvesting
MIMO
Optimization
Radio frequency
Receivers
Relays
Throughput
Online Access:Request full text
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Summary:In this paper, we investigate the simultaneous wireless information and power transfer (SWIPT) for a decode-and-forward (DF) multiple-input multiple-output (MIMO) relay system where the relay is an energy harvesting node. We consider the ideal scenario where both the energy harvesting (EH) receiver and information decoding (ID) receiver at the relay have access to the whole received signal and its energy. The relay harvests the energy while receiving the signal from the source and uses the harvested power to forward the signal to the destination. We obtain the optimal precoders at the source and the relay to maximize the achievable throughput rate of the overall link. In the numerical results, the effect of the transmit power at the source and the position of the relay between the source and the destination on the maximum achievable rate are investigated.
ISSN:1550-2252
DOI:10.1109/VTCSpring.2015.7146087