Large-Coverage White-Light Controller Combining Adaptive QoS-Enhanced Mqam-NOMA for High-Speed Visible Light Communication
Large-Coverage White-Light Controller Combining Adaptive QoS-Enhanced Mqam-NOMA for High-Speed Visible Light Communication
复制标题
大覆盖范围白光控制器结合自适应 QoS 增强型 Mqam-NOMA，实现高速可见光通信
DOI：
10.1109/jlt.2021.3105534
复制
发表时间：
2021
影响因子：
4.7
通讯作者：
Yuhan Dong
中科院分区：
文献类型：
--
作者：
Li Zhang;Zhaoming Wang;Yuting Cai;R. Xie;Jianshe Ma;H. Fu;Yuhan Dong
我们提出了一种自适应非正交多址接入（NOMA）方案，并展示了其实现的多用户系统的基础上，一种新的白光控制器组成的橙子CsPb（Br/I）3纳米晶体（NC）和光聚合物薄膜。通过在小角度（<5°）内旋转薄膜，系统在1 m距离内提供了30.11°的大覆盖范围，3dB调制带宽达到395 MHz。在相同的实验条件下，该算法在误码率分别为8.24×10−4和2.24×10−3的情况下，两个用户的总速率达到1.95 Gbps，比传统的固定长度NOMA方法提高了30%以上。所设计的方案能够缓解信道不公平性，并为中心和边缘用户提供增强的服务质量（QoS）。它为我们提供了一个很有前途的解决方案，开发大覆盖范围的高速可见光通信（VLC）的多用户场景与室内照明。
We propose an adaptive non-orthogonal multiple access (NOMA) scheme and demonstrate its implementation for a multi-user system based on a novel white-light controller composed of orange CsPb(Br/I)3 nanocrystals (NCs) and photopolymer film. By rotating the film within a small angle (<5°), the system provides a large coverage area of 30.11° semi-angle in 1-m distance while 3-dB modulation bandwidth reaches 395 MHz. Under the same experimental setting, the proposed algorithm achieves a sum rate of 1.95 Gbps for two users with bit-error-rates (BERs) of 8.24×10−4 and 2.24×10−3 respectively, which outperforms conventional fixed-size NOMA methods by more than 30%. The designed scheme is capable of alleviating channel unfairness and providing enhanced quality-of-service (QoS) for both center and edge users. It offers us a promising solution to develop large-coverage high-speed visible light communication (VLC) for multi-user scenarios together with indoor illumination.