Joint relay beamforming and power splitting ratio optimization in a multi-antenna relay network

Yi Yuan, Zheng Chu, Zhiguo Ding, Kanapathippillai Cumanan, Martin Johnston

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper investigates simultaneous wireless information and power transfer (SWIPT) in a multi-antenna relay network. We consider robust transmit power minimization problem at the relay by jointly optimizing beamforming and
adaptive power splitting subject to the signal-to-inference-plus-noise (SINR) and energy harvesting constraints by incorporating channel uncertainty model. We formulate the original non-convex problem into semidefinite programming problem (SDP) by relaxing rank-one constraint and we show the optimal solution of SDP is always rank-one. Simulation results are provided to validate the performance of the proposed robust algorithms.
Original languageEnglish
Title of host publicationWireless Communications and Signal Processing (WCSP)
Subtitle of host publication2014 Sixth International Conference on
PublisherIEEE Wireless Communications and Signal Processing (WCSP)
Number of pages5
ISBN (Print)9781479973392
DOIs
Publication statusPublished - 2014

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