Performance Analysis of Power Allocation and User-Pairing Techniques for MIMO-NOMA in VLC Systems

In this paper, we evaluate the performance of multiple-input multiple-output (MIMO) communication systems applied with a non-orthogonal multiple access (NOMA)-based indoor visible light communication (VLC). We present two efficient user-pairing algorithms for NOMA in VLC, aiming to enhance achievabl...

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Published in:Photonics 2024-03, Vol.11 (3), p.206
Main Authors: Ibrahim, Hesham S., Abaza, Mohamed, Mansour, Ali, Alfalou, Ayman
Format: Article
Language:English
Subjects:
Algorithms
Bandwidths
Communications systems
Comparative analysis
Engineering Sciences
fixed power allocation (FPA)
Frequency division multiple access
gain ratio power allocation (GRPA)
Genetic algorithms
Light emitting diodes
Methods
MIMO communication
MIMO communications
multiple-input multiple-output (MIMO)
Noise
non-orthogonal multiple access (NOMA)
Nonorthogonal multiple access
normalized gain difference power allocation (NGDPA)
Optical communication
Orthogonal Frequency Division Multiplexing
Performance evaluation
visible light communication (VLC)
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creator Ibrahim, Hesham S.
Abaza, Mohamed
Mansour, Ali
Alfalou, Ayman
description In this paper, we evaluate the performance of multiple-input multiple-output (MIMO) communication systems applied with a non-orthogonal multiple access (NOMA)-based indoor visible light communication (VLC). We present two efficient user-pairing algorithms for NOMA in VLC, aiming to enhance achievable data rates effectively. Our investigation involves the application of three low-complexity power allocation techniques. Comparative analysis reveals performance enhancements when employing the proposed schemes, especially when contrasted with NOMA without user pairing and orthogonal frequency division multiple access (OFDMA). Additionally, we explore the performance of both algorithms in scenarios with both even and odd numbers of users. Simulation results demonstrate the superiority of NOMA in comparison to OFDMA.
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source Publicly Available Content (ProQuest); EZB Electronic Journals Library
subjects Algorithms
Bandwidths
Communications systems
Comparative analysis
Engineering Sciences
fixed power allocation (FPA)
Frequency division multiple access
gain ratio power allocation (GRPA)
Genetic algorithms
Light emitting diodes
Methods
MIMO communication
MIMO communications
multiple-input multiple-output (MIMO)
Noise
non-orthogonal multiple access (NOMA)
Nonorthogonal multiple access
normalized gain difference power allocation (NGDPA)
Optical communication
Orthogonal Frequency Division Multiplexing
Performance evaluation
visible light communication (VLC)
title Performance Analysis of Power Allocation and User-Pairing Techniques for MIMO-NOMA in VLC Systems
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