Robust Beamforming Design for MISO Secrecy Multicasting Systems with Energy Harvesting

In this paper, we study simultaneous wireless information and power transfer (SWIPT) for multiuser multiple-input- single-output (MISO) secrecy multicasting channels with imperfect channel state information. First, a robust secure beamfoming design is considered, where the transmit power is minimize...

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Bibliographic Details
Published in:2016 IEEE 83rd Vehicular Technology Conference (VTC Spring) pp. 1 - 5
Main Authors: Zhengyu Zhu, Zheng Chu, Zhongyong Wang, Inkyu Lee
Format: Conference Proceeding
Language:English
Published: IEEE 01.05.2016
Subjects:
Array signal processing
MISO
Multicast communication
Receivers
Robustness
Transmitters
Uncertainty
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Summary:In this paper, we study simultaneous wireless information and power transfer (SWIPT) for multiuser multiple-input- single-output (MISO) secrecy multicasting channels with imperfect channel state information. First, a robust secure beamfoming design is considered, where the transmit power is minimized subject to the secrecy rate outage probability constraint for legitimate users and the harvested energy outage probability constraint for energy harvesting receivers. The original problem is non-convex due to the presence of the probabilistic constraints. By utilizing Bernstein-type inequalities, we transform the outage constraints into the deterministic forms. In order to identify a local optimal rank-one solution, we propose an efficient approach based on a constrained concave convex procedure method to convert the original problem into a sequence of convex programming problems. Finally, simulation results are provided to validate the performance of our proposed design methods.
DOI:10.1109/VTCSpring.2016.7504457