当前位置: X-MOL 学术Trans. Emerg. Telecommun. Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Collaborative Transmitters Management for Multi-user Indoor VLC Systems
Transactions on Emerging Telecommunications Technologies ( IF 2.5 ) Pub Date : 2021-06-08 , DOI: 10.1002/ett.4319
Safwan Hafeedh Younus 1
Affiliation  

The main encounters face visible light communication (VLC) systems to provide high data rates for multiuser scenario are intersymbol interference (ISI) and cochannel interference (CCI). This work proposes delay adaptation technique (DAT) in conjunction with power adaptation technique (PAT) to improve the performance of the multiuser indoor VLC systems. The DAT is used to reduce the ISI while the PAT is utilized to reduce the CCI. To apply the DAT and PAT, each access point (AP) requires to share its information with the controller, which is responsible to manage the connection between user equipment (UEs) and APs. Therefore, each AP is given a control signal (an unmodulated unique tone signal). These control signals are utilized to set-up the connection between APs and UEs (allocate each UE its best APs, which are APs that offer good connection links). Our proposed system performance is evaluated in a realistic room while considering the effect of diffuse reflections and CCI and using on-off-keying modulation. The results reveal that a remarkable improvement in the VLC system's performance with using DAT and PAD compared with the VLC system without using DAT and PAT.

中文翻译:

多用户室内 VLC 系统的协作发射机管理

为多用户场景提供高数据速率的可见光通信 (VLC) 系统面临的主要问题是符号间干扰 (ISI) 和同信道干扰 (CCI)。这项工作提出了延迟自适应技术 (DAT) 与功率自适应技术 (PAT) 相结合,以提高多用户室内 VLC 系统的性能。DAT用于降低ISI,而PAT用于降低CCI。为了应用 DAT 和 PAT,每个接入点 (AP) 需要与控制器共享其信息,控制器负责管理用户设备 (UE) 和 AP 之间的连接。因此,每个 AP 都被赋予一个控制信号(未调制的唯一音调信号)。这些控制信号用于建立 AP 和 UE 之间的连接(为每个 UE 分配最好的 AP,哪些是提供良好连接链路的 AP)。我们建议的系统性能是在现实房间中评估的,同时考虑了漫反射和 CCI 的影响,并使用了开关键控调制。结果表明,与不使用 DAT 和 PAT 的 VLC 系统相比,使用 DAT 和 PAD 的 VLC 系统的性能显着提高。
更新日期:2021-06-08
down
wechat
bug