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Joint Relay Beamforming and Power Splitting Ratio Optimization in a Multi-Antenna Relay Network

Lookup NU author(s): Yi Yuan, Zheng Chu, Dr Zhiguo Ding, Dr Kanapathippillai Cumanan, Dr Martin JohnstonORCiD

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Abstract

This paper investigates simultaneous wireless information and power transfer (SWEPT) 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.


Publication metadata

Author(s): Yuan Y, Chu Z, Ding ZG, Cumanan K, Johnston M

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)

Year of Conference: 2014

Pages: 1-5

Online publication date: 22/12/2014

Acceptance date: 01/01/1900

Publisher: IEEE

URL: http://dx.doi.org/10.1109/WCSP.2014.6992047

DOI: 10.1109/WCSP.2014.6992047

Library holdings: Search Newcastle University Library for this item

ISBN: 9781479973392


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