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Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
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A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
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The principle of power preservation is applicable to both ac and dc circuits. This principle, when applied to AC power, asserts that the complex, real, and reactive powers produced by the source are equal to the total complex, real, and reactive powers absorbed by the loads. When two load impedances are connected in parallel to an ac source V, the complex power provided by the source can be calculated using the relation
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Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
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在RIS的能源意识资源协会协助VLC-RF通信网络.

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此摘要是机器生成的。

本研究介绍了一种混合可见光通信 (VLC) 和无线电频率 (RF) 网络,使用光学可重新配置智能表面 (ORIS). 集成系统提高了通信可靠性,并降低了智能设备的功耗.

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科学领域:

  • 无线通信无线通信
  • 光学网络的光学网络.
  • 智能表面是一种智能表面.

背景情况:

  • 智能设备和数据密集型应用程序对可靠通信的需求不断增加,由于频谱有限和拥堵,传统的射频 (RF) 系统承受着负担.
  • 可见光通信 (VLC) 提供了更广泛的频谱和高速数据传输,但面临着有限覆盖和阻塞的挑战.

研究的目的:

  • 提供一个集成的VLC-RF通信网络,增强了光学重配置智能表面 (ORIS) 和RF RIS.
  • 提出一种资源关联算法,以优化ORIS部署和混合网络中的电力分配.

主要方法:

  • 开发一个混合VLC-RF通信模型,包括ORIS和RF RIS.
  • 建议一种资源关联算法,将ORIS与VLC接入点和节点对连接起来.
  • 评估电力分配策略及其对系统性能的影响.

主要成果:

  • 混合系统模型在相同的功率分配下实现了9.43%的总利率增长.
  • 拟议的关联计划导致总能耗提高了12.74%.
  • ORIS有效地减轻了VLC的覆盖范围限制和阻塞易感性.

结论:

  • 与ORIS集成的VLC-RF网络提供了一个强大的解决方案,以克服传统无线通信的局限性.
  • 拟议的资源关联算法和电力分配策略显著提高了系统效率并降低了电力消耗.
  • 这种混合方法为未来的高性能无线通信网络提供了一个有希望的方向.