Uniform-Distributed Constellation Codebook Design for High-Capacity Visible Light Communications
Uniform-Distributed Constellation Codebook Design for High-Capacity Visible Light Communications
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DOI：
10.1109/lcomm.2023.3316453
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发表时间：
2023-11
期刊：
影响因子：
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通讯作者：
Lisu Yu;Jiajia Qian;Yiming Gui;Zilong Liu;Pei Xiao;Yuhao Wang;Zhenghai Wang
中科院分区：
文献类型：
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作者：
Lisu Yu;Jiajia Qian;Yiming Gui;Zilong Liu;Pei Xiao;Yuhao Wang;Zhenghai Wang
这封信研究了基于代码域非正交多访问（CD-NOMA）的高容量可见光通信（VLC），目的是实现未来的机器型通信网络。为了满足非负信号约束并减轻/抑制非线性效果和射击噪声，开发了一种新型均匀分布的星座代码簿，用于较低的峰值功率和较大的最小欧几里得距离（MED）。模拟结果表明，与现有代码簿相比，我们提出的代码手册可显着提高错误率的性能。此外，提出了具有较大过载因子的代码手册以实现高容量通信。
This letter studies high-capacity visible light communication (VLC) based on code-domain non-orthogonal multiple access (CD-NOMA) with the goal of enabling the future machine-type communication networks. To fulfill the non-negative signal constraint and mitigate/suppress the nonlinear effects and shot noise, a novel uniform-distributed constellation codebook is developed for lower peak power and larger minimum Euclidean distance (MED). The simulation results demonstrate that our proposed codebooks give rise to significantly improved error rate performance compared to existing codebooks. In addition, codebooks with larger overloading factors are presented to achieve high-capacity communication.