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- W2786672005 abstract "In this paper, we investigate a multiuser distributed antenna system with simultaneous wireless information and power transmission under the assumption of imperfect channel state information (CSI). In this system, a distributed antenna port with multiple antennas supports a set of mobile stations who can decode information and harvest energy simultaneously via a power splitter. To design robust transmit beamforming vectors and the power splitting (PS) factors in the presence of CSI errors, we maximize the average worst-case signal-to-interference-plus- noise ratio (SINR) while achieving individual energy harvesting constraint for each mobile station. First, we develop an efficient algorithm to convert the max-min SINR problem to a set of dual min-max power balancing problems. Then, motivated by the penalty function method, an iterative algorithm based on semi-definite programming (SDP) is proposed to achieve a local optimal rank-one solution. Also, to reduce the computational complexity, we present another iterative scheme based on the Lagrangian method and the successive convex approximation (SCA) technique to yield a suboptimal solution. Simulation results are shown to validate the robustness and effectiveness of the proposed algorithms." @default.
- W2786672005 created "2018-02-23" @default.
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- W2786672005 date "2019-03-01" @default.
- W2786672005 modified "2023-10-16" @default.
- W2786672005 title "Robust Designs of Beamforming and Power Splitting for Distributed Antenna Systems With Wireless Energy Harvesting" @default.
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- W2786672005 doi "https://doi.org/10.1109/jsyst.2018.2793903" @default.
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