# Laser-Based Mobile Visible Light Communication System
## 4 Conclusions and Discussion  
In this work, we present the design of a mobile VLC system architecture and conduct a comprehensive experimental analysis of its data transmission performance. Through experimental design and detailed performance evaluation, the results demonstrate robustness at transmission distances of one meter and two meters, showing that the mobility of the receiver has a minimal impact on the system performance. However, as the transmission distance increases, the receiver mobility will impact the system performance and intensify with an increased mobility speed. At a transmission distance of four meters, the system is capable of supporting a transmission of 500 Mbps at a speed of 0.48 m/s.  
The experiments validate the effectiveness and reliability of the mobile laser-based VLC system under various operational conditions and provide valuable performance references for the application of mobile VLC technology in real-world environments. With ongoing development and optimization, the potential applications of mobile VLC technology in scenarios such as vehicular communication, connectivity among mobile devices, and indoor positioning are expected to expand significantly. Mobile VLC technology is poised to play an increasingly important role in the construction of intelligent communication networks.  
In further research on VLC in mobile scenarios, several promising directions can be pursued. Firstly, integrating advanced equalization and modulation techniques tailored specifically for mobile environments can significantly enhance the robustness and reliability of VLC systems [28; 29]. This could involve the development of adaptive algorithms capable of dynamically adjusting parameters in response to changes in ambient lighting conditions and mobility patterns. Secondly, exploring the potential of MIMO technology in VLC sys  
Figure 9: The variation in mean BER with position and velocity.  
tems for mobile applications holds considerable promise. By leveraging multiple transmit and receive antennas, MIMO can improve data rates, extend coverage, and enhance the overall performance of VLC systems in dynamic mobile environments [8; 30]. Furthermore, investigating novel hybrid VLC-radio frequency (RF) communication schemes could offer synergistic benefits, combining the strengths of both technologies to achieve seamless connectivity and an improved quality of service for mobile users [31; 32]. This hybrid approach could involve intelligent handover mechanisms between VLC and RF networks, ensuring uninterrupted communication and optimal resource utilization. Moreover, exploring innovative VLC-enabled applications beyond traditional communication, such as indoor positioning, augmented reality, and vehicular communication, could open up new avenues for research and practical implementation in diverse mobile scenarios [33; 34; 35]. Overall, by addressing these research directions, we can unlock the full potential of VLC in mobile environments, paving the way for the development of high-performance, ubiquitous communication systems that meet the evolving needs of modern mobile users.  
Conceptualization, C.M.; investigation, X.W., L.X. and G.L.; methodology, Y.H. and Z.W.; resources, J.S., Z.L. (Ziwei Li), J.Z., N.C. and C.S.; software, Z.L. ([PERSON]) and J.H.; supervision, N.C. and C.S.; visualization, Y.H. and Z.W.; writing--original draft, Y.H. and C.S.; writing--review and editing, Y.H. and C.S. All authors have read and agreed to the published version of the manuscript.  
This research was funded by Natural Science Foundation of China Project, grant number 62274042, 6192510; Natural Science Foundation of Shanghai, grant number 21 ZR1406200; The joint project of China Mobile Research Institute & X-NET; The Key Research and Development Program of Jiangsu Province, grant number BE2021008-5.  
Not applicable.  
The raw data supporting the conclusions of this article will be made available by the authors on request.  
The authors declare no conflicts of interest.