Linear Precoder Design for SWIPT in MIMO Broadcasting Systems With Discrete Input Signals: Manifold Optimization Approach

In this paper, we investigate the design of linear precoders for simultaneously wireless information and power transfer (SWIPT) in a multi-input multi-output (MIMO) broadcasting system with discrete input signals. The considered system model consists of one base station (BS), one information receive...

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Veröffentlicht in:IEEE transactions on communications Jg. 65; H. 7; S. 2877 - 2888
Hauptverfasser: An-An Lu, Xiqi Gao, Zheng, Yahong Rosa, Chengshan Xiao
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York IEEE 01.07.2017
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
Algorithms
Broadcasting
Communication channels
Computer simulation
discrete input signals
Erbium
manifold optimization
Manifolds
MIMO
MIMO (control systems)
multi-input multi-output (MIMO)
Mutual information
Optimization
Power transfer
precoder design
Receivers
Simultaneously wireless information and power transfer (SWIPT)
Time sharing
Transmitters
ISSN:0090-6778, 1558-0857
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Zusammenfassung:In this paper, we investigate the design of linear precoders for simultaneously wireless information and power transfer (SWIPT) in a multi-input multi-output (MIMO) broadcasting system with discrete input signals. The considered system model consists of one base station (BS), one information receiver (IR), and one energy receiver (ER). The design objective is to maximize the input-output mutual information of the IR subject to the power constraint and the harvested energy requirement for the ER. We derive the structure of the optimal linear precoder by using manifold optimization, and propose an algorithm to find the optimal precoder. Simulation results show that the proposed algorithm can achieve better performance than the time sharing scheme and the Gaussian optimal precoder when Gaussian inputs are replaced by discrete input signals.
Bibliographie:ObjectType-Article-1
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content type line 14
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2017.2695598