Full-Duplex With Self-Energy Recycling in the RF Powered Multi-Antenna Relay Channels
- Authors
- Kwon, Kuhyung; Hwan, Duckdong; Song, Hyoun-Kyu; Nam, Sung Sik
- Issue Date
- Oct-2019
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Full-duplex; multiple antennas; RF powered relay channel; self-energy recycling
- Citation
- IEEE SIGNAL PROCESSING LETTERS, v.26, no.10, pp.1516 - 1520
- Journal Title
- IEEE SIGNAL PROCESSING LETTERS
- Volume
- 26
- Number
- 10
- Start Page
- 1516
- End Page
- 1520
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/78535
- DOI
- 10.1109/LSP.2019.2938304
- ISSN
- 1070-9908
- Abstract
- In this letter, we address the heamforming in full-duplex self-energy recycling relay system, where an amplify-and-forward relay delivers the source message to the destination in a single time slot while recycling a portion of its RF energy through energy harvesting. The signal received at the realy is divided into two circuits, one for the full-duplex relaying and the other for the energy harvesting. The beamforming vectors and the power division ratio at the relay are optimized to maximize the harvested energy while maintaining a certain reception quality threshold at the destination. Simulation results show various advantages and trade-offs of the proposed system.
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