Energy Beamforming for Wireless Power Transfer in MISO Heterogeneous Network With Power Beacon
SCIE
SCOPUS
- Title
- Energy Beamforming for Wireless Power Transfer in MISO Heterogeneous Network With Power Beacon
- Authors
- Jong-Hyeok Park; JEON, YO SEB; HAN, SOOHEE
- Date Issued
- 2017-05
- Publisher
- IEEE
- Abstract
- This letter considers an energy harvesting heterogeneous network (EHHN) in which a power beacon (PB) for radio-frequency-energy transfer coexists with a base station for information transfer. In this network, a tradeoff exists between harvested energy and information rate, because the energy transfer of the PB causes the interference to the information transfer. To determine the optimal energy-transfer strategy under this tradeoff, we propose an energy beamforming scheme that maximizes the weighted sum of the harvested energy and the information rate in multiple-input single-output EHHN. Because the weighted-sum-maximization problem is nonconvex, we partition it into a difference of convex functions problem and a convex-maximization problem, and then solve them using efficient convex-based algorithms. In simulation, the proposed beamforming scheme is shown to achieve a near-optimal rate-energy region for the considered problem.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/41083
- DOI
- 10.1109/LCOMM.2017.2654254
- ISSN
- 1089-7798
- Article Type
- Article
- Citation
- IEEE COMMUNICATIONS LETTERS, vol. 21, no. 5, page. 1163 - 1166, 2017-05
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