Optimized Multi-Primary Modulation for Visible Light Communication
Optimized Multi-Primary Modulation for Visible Light Communication
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DOI：
10.1109/jlt.2022.3201279
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发表时间：
2022-11
影响因子：
4.7
通讯作者：
Thai-Chien Bui;Ravinder Singh;T. OFarrell;G. Scarano;J. David;M. Biagi
中科院分区：
文献类型：
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作者：
Thai-Chien Bui;Ravinder Singh;T. OFarrell;G. Scarano;J. David;M. Biagi
多基色调制方案具有通过提供相同的色度调制字母表来提供稳健的可见光通信链路并减轻任何颜色波动的潜力。描述了多基色调制(MPM)的星座优化技术，该技术表明，对基色光使用不同的功率级别可以获得相同的颜色，并进一步增强多维颜色空间中数据符号之间的欧几里德距离。在考虑加性高斯白噪声的室内光无线信道模型下，对优化后的MPM方案和未优化前的MPM方案的误码率性能进行了评估。结果表明，优化后的MPM具有更好的频谱效率，在相同频谱效率的情况下，信噪比增益可达3.5dB.性能优于未优化的MPM方案，从而为利用多色光源实现稳健的可见光通信链路打开了大门.
Multi-primary modulation scheme has the potential to provide robust visible light communication links and mitigate any color fluctuations by providing identical chromaticity modulation alphabets. This work describes constellation optimization technique for multi-primary modulation (MPM), which shows that using different power levels for the primary lights can lead to obtain the same color and, furthermore, enhance the Euclidean distances between data symbols in the multi-dimensional color space. The bit error rate performances of the optimized MPM and the original non-optimized MPM schemes are evaluated considering indoor optical wireless channel models with additive white Gaussian noise. The results show that the optimized MPM provides better spectral efficiency and outperforms the original non-optimized MPM scheme by achieving up to 3.5 dB Signal-to-noise ratio gain for the same spectral efficiency and, therefore, opens doors for implementation of robust visible light communication links exploiting multi-color light sources.