Wireless Information and Power Transfer for Multirelay-Assisted Cooperative Communication

In this letter, we consider simultaneous wireless information and power transfer (SWIPT) in multirelay-assisted two-hop relay system, where multiple relay nodes simultaneously assist the transmission from source to destination using the concept of distributed space-time coding. Each relay applies po...

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Bibliographic Details
Published in:IEEE communications letters 2016-04, Vol.20 (4), p.784-787
Main Author: Liu, Yuan
Format: Article
Language:English
Subjects:
and resource allocation
Computer simulation
cooperative communication
Decoding
Energy harvesting
Optimization
Power transfer
Protocols
Relay
Relay systems
Relaying
Relays
Signal to noise ratio
Simultaneous wireless information and power transfer
Wireless communication
Wireless sensor networks
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Summary:In this letter, we consider simultaneous wireless information and power transfer (SWIPT) in multirelay-assisted two-hop relay system, where multiple relay nodes simultaneously assist the transmission from source to destination using the concept of distributed space-time coding. Each relay applies power splitting protocol to coordinate the received signal energy for information decoding and energy harvesting. The optimization problems of power splitting ratios at the relays are formulated for both decode-and-forward (DF) and amplify-and-forward (AF) relaying protocols. Efficient algorithms are proposed to find the optimal solutions. Simulations verify the effectiveness of the proposed schemes.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2016.2535114