视线通道对直流偏压滤光片组多载波可见光通信与多个 LED 阵列的影响

Q1 Mathematics
Mohammed Ali Asban, Rahmat Talib, Mohammad F. L. Abdullah, M. Gismalla
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引用次数: 0

摘要

本文研究了在基于滤波器组多载波(FBMC)调制的可见光通信(VLC)系统中使用多个 LED 阵列对传播延迟和信道损耗的影响。FBMC 具有更高的频谱效率和异步传输特性,是正交频分调制(OFDM)的一种有前途的替代方案。拟议的 FBMC 模型基于 4-quadrature amplitude modulation (QAM) 和 16-QAM 格式,使用 100 个符号和每个符号 600 个输入比特。本文基于加性白高斯噪声(AWGN)信道下的视距(LOS)模型设计了 VLC-FBMC 系统。在误码率 (BER)、最佳采样点和信噪比 (SNR) 要求方面对不同比特率进行了比较分析,以显示延迟和损耗对通信质量和系统性能的影响。结果表明,在高 QAM 格式下,拟议的 FBMC 模型可实现高达 29.296 Mbit/s 的比特率,误码率低至 10-3,信噪比损失更小,这表明它有潜力成为未来 VLC 系统中 OFDM 的可行替代品。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Line-of-sight Channels on DC-biased Optical Filter Bank Multicarrier Visible Light Communication with Multiple LED Arrays
This paper investigates the impact of propagation delay and channel loss due to the use of multiple LED arrays in visible light communication (VLC) systems based on filter bank multicarrier (FBMC) modulation. FBMC offers greater spectral efficiency, and asynchronous transmission and is a promising alternative scheme to orthogonal frequency division modulation (OFDM). The proposed FBMC model is based on 4-quadrature amplitude modulation (QAM) and 16-QAM formats and uses 100 symbols and 600 input bits per symbol. In this paper, the VLC-FBMC system is designed based on the line-of-sight (LOS) model under the additive white Gaussian noise (AWGN) channel. Comparison analyses between different bit rates in terms of bit error rate (BER), best sampling point, and signal-to-noise ratio (SNR) requirement have been carried out to show the delay and loss effect on communication quality and system performance. The results demonstrate that the proposed FBMC model achieves a bit rate of up to 29.296 Mbit/s with a low BER of 10-3 and less SNR penalty in high QAM formats, demonstrating its potential as a viable alternative to OFDM for future VLC systems.
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CiteScore
4.10
自引率
0.00%
发文量
33
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