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arXiv 2401.16627eess.SP
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利用反射面最小化 VLC 中断概率的资源分配

Resource allocation exploiting reflective surfaces to minimize the outage probability in VLC

Borja Genoves Guzman, Maximo Morales Cespedes, Victor P. Gil Jimenez, Ana Garcia Armada, Maite Brandt-Pearce

AI总结:

本文针对 VLC 阻挡导致的中断问题,联合优化反射镜与 ORIS 放置及 LED 功率分配,在满足照明标准下最小化中断概率,并通过实验验证显著性能增益。

摘要:

可见光通信(VLC)是一种补充射频(RF)以满足不断增长的无线数据流量需求的技术。发光二极管(LED)作为发射机被广泛使用,提高了 VLC 的市场渗透率,并使其成为缓解 RF 频谱稀缺最有前景的技术之一。然而,VLC 的部署受到障碍物存在时造成连接中断的阻挡问题的阻碍。最近,光学可重构智能表面(ORIS)被考虑用于缓解这一问题。尽管已有工作利用 ORIS 最大化数据速率或保密速率,本文研究反射镜和 ORIS 的最优放置以及 LED 功率分配,以在保持照明标准的同时联合最小化中断概率。我们描述了一个最优中断最小化框架,并提出了可求解的启发式方法。我们提供了大量数值结果,表明与无反射镜场景相比,使用 ORIS 可将中断概率最高降低 67%,并且相对于所提出的基准,在光能量效率方面带来数百 kbit/J 的增益。

英文摘要:

Visible light communication (VLC) is a technology that complements radio frequency (RF) to fulfill the ever-increasing demand for wireless data traffic. The ubiquity of light-emitting diodes (LEDs), exploited as transmitters, increases the VLC market penetration and positions it as one of the most promising technologies to alleviate the spectrum scarcity of RF. However, VLC deployment is hindered by blockage causing connectivity outages in the presence of obstacles. Recently, optical reconfigurable intelligent surfaces (ORISs) have been considered to mitigate this problem. While prior works exploit ORISs for data or secrecy rate maximization, this paper studies the optimal placement of mirrors and ORISs, and the LED power allocation, for jointly minimizing the outage probability while keeping the lighting standards. We describe an optimal outage minimization framework and present solvable heuristics. We provide extensive numerical results and show that the use of ORISs may reduce the outage probability by up to 67% with respect to a no-mirror scenario and provide a gain of hundreds of kbit/J in optical energy efficiency with respect to the presented benchmark.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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