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Common Volume Sampling for Optical Wireless Scattering Channel Simulation
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DOI：10.1109/TCOMM.2025.3648969.png)
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摘要
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In this paper, we propose a novel computational method, termed Monte Carlo Integration with Common Volume Sampling (MCI-CVS), which enables direct photon sampling within the common scattering volume. This approach significantly accelerates the convergence of optical wireless scattering channel simulations. Although each sample in MCI-CVS incurs approximately 3.74 times the computational cost of conventional methods, numerical results for ultraviolet scattering channels demonstrate that it reduces the required number of samples by a factor of 1,000 compared with Monte Carlo Integration with Importance Sampling (MCI-IS). As a result, MCI-CVS achieves an overall efficiency gain of approximately 267.3 times faster than MCI-IS and about 1,206 times compared to the baseline Monte-Carlo Simulation (MCS) method. Furthermore, the proposed method effectively addresses inefficient photon path sampling in infrared scattering channels, where low scattering and absorption coefficients degrade sampling efficiency and thus result in slow convergence. By incorporating photon path reuse, MCI-CVS also enables fast generation of two-dimensional scattering fields on a standard personal computer.
Keyword:
Optical wireless communication
scattering channel simulation
Monte Carlo integration
期刊
IF:
8.3
论文数:
1.2W
被引数:
3.6W
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引用论文
Double-Scatter Characterization on Scattering-Enhanced Non-Line-of-Sight Ultraviolet Communication
PREAI
分享收藏Simplified model and experimental validation for ultraviolet single-scattering channels.png)
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