Power Allocation with Meta-heuristic Algorithms for Indoor MIMO-NOMA Based VLC Systems

Visible light communication (VLC) is a form of short-range wireless optical communication that uses light in the visible band for both communication and illumination. The limited switching frequencies of light-emitting diodes (LEDs), which are mostly preferred as transmitters in VLC systems, adverse...

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Veröffentlicht in:Wireless personal communications Jg. 136; H. 1; S. 617 - 630
Hauptverfasser: Altunbas, Yasin, Turk, Kadir
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York Springer US 01.05.2024
Springer Nature B.V
Schlagworte:
Algorithms
Communication
Communications Engineering
Computer Communication Networks
Data transmission
Engineering
Heuristic
Heuristic methods
Light emitting diodes
Methods
MIMO communication
Networks
Noise
Nonorthogonal multiple access
Optimization algorithms
Performance evaluation
Radiation
Radio frequency
Signal strength
Signal,Image and Speech Processing
Transmitters
Wireless communications
Multiple-input multiple-output (MIMO)
Visible light communication (VLC)
Meta-heuristic algorithm
Non-orthogonal multiple access (NOMA)
ISSN:0929-6212, 1572-834X
Online-Zugang:Volltext
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Zusammenfassung:Visible light communication (VLC) is a form of short-range wireless optical communication that uses light in the visible band for both communication and illumination. The limited switching frequencies of light-emitting diodes (LEDs), which are mostly preferred as transmitters in VLC systems, adversely affect the speed of communication. Non-orthogonal multiple access (NOMA) as an access method, and multiple-input multiple-output (MIMO) are used in VLC systems to raise the sum rate. Several methods have been proposed in the literature to determine needed power allocation coefficients for indoor MIMO-NOMA based VLC systems. In this study, meta-heuristic optimization algorithms are proposed to determine the power allocation coefficient that are subject to various constraints including fairness. The numeric results demonstrate the superiority of meta-heuristic methods over sum rate performance. In cases where the user signal strength values differ and the number of users increases, or in other words, the solution becomes more complex, the sum rate acquired by traditional methods reduces, whereas the sum rate using the suggested methods almost does not change and stays high.
Bibliographie:ObjectType-Article-1
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ISSN:0929-6212
1572-834X
DOI:10.1007/s11277-024-11340-8