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Wireless Personal Communications
Erschienen in: Wireless Personal Communications 1/2017

09.05.2017

Simultaneous Wireless Information and Power Transfer with Finite-Alphabet Inputs

verfasst von: Feng Ke, Xiaoyu Huang, Yuan Liu, Suili Feng

Erschienen in: Wireless Personal Communications | Ausgabe 1/2017

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Abstract

Simultaneous wireless information and power transfer (SWIPT) is a promising solution to carry energy as well as information at the same time for wireless networks. In this paper, we consider a precoding matrix design for multiple-input multiple-output (MIMO) SWIPT systems with finite-alphabet inputs. The problem can be formulated as maximizing the mutual information given the energy level and the power constraint for achieving a so-called rate-energy region. The formulated problem is non-concave, which can be reduced to a convex power allocation problem by the proposed gradient-descend design of the precoding matrix. Several rate-energy regions can be achieved by trading off between the information rate and the harvested energy with different schemes. Simulation results indicate that the proposed scheme with finite-alphabet inputs provides significant performance gain over existing schemes with Gaussian inputs.
Vorheriger Artikel A Reliable Time-Domain Spectrum Hole Prediction for Cognitive Radio Networks Using Regularized Multi-Layer Perceptron
Nächster Artikel Optimal Location of Energy Efficient DF Relay Node in – Fading Channel

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Metadaten
Titel
Simultaneous Wireless Information and Power Transfer with Finite-Alphabet Inputs
verfasst von
Feng Ke
Xiaoyu Huang
Yuan Liu
Suili Feng
Publikationsdatum
09.05.2017
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 1/2017
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-017-4194-3

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