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Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
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The Discrete-Time Fourier Series (DTFS) is a fundamental concept in signal processing, serving as the discrete-time counterpart to the continuous-time Fourier series. It allows for the representation and analysis of discrete-time periodic signals in terms of their frequency components. Unlike its continuous counterpart, which utilizes integrals, the calculation of DTFS expansion coefficients involves summations due to the discrete nature of the signal.
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有效和安全的服务功能链部署方法,以优化空中交通信息网络的延迟.

Yong Yang1, Buhong Wang2, Rongxiao Guo2

  • 1Information and Navigation School, Air Force Engineering University, Xi'an, 710077, China. yangyong_123456789@163.com.

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PubMed
概括
此摘要是机器生成的。

本研究介绍了一种有效和安全的方法,用于在空中交通网络中部署服务功能链 (SFC). 拟议的方法优化了延迟和成本,同时保持了空中交通服务的高安全性.

关键词:
空中交通信息网络是空中交通信息网络.网络功能虚拟化 网络功能虚拟化安全的安全的安全的安全的安全.服务功能链部署服务功能链部署虚拟网络功能 虚拟网络功能

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科学领域:

  • 计算机科学 计算机科学
  • 网络工程 网络工程
  • 航空航天系统系统

背景情况:

  • 传统的空中交通信息网络由于服务需求的增加而面临灵活性限制.
  • 网络功能虚拟化 (NFV) 为增强网络适应性提供了一个解决方案.
  • 服务功能链 (SFC) 对于在NFV环境中提供端到端的空中交通服务至关重要.

研究的目的:

  • 为满足空中交通服务中低延迟和高安全性的关键要求.
  • 提出一个优化延迟的高效和安全的SFC部署方法 (ESSFCD-DO).
  • 从理论上分析SFC部署,并建立延迟,安全和成本的关键原则.

主要方法:

  • 开发了基于衍生SFC部署原则的ESSFCD-DO方法.
  • 集成了一个虚拟网络功能 (VNF) 聚合算法,用于安全和资源成本优化 (VNFAA-SRCO).
  • 使用了拓意识的VNF部署算法 (VNFD-TA) 和虚拟链接部署的k-最短路径.

主要成果:

  • 通过ESSFCD-DO方法,可以显著减少端到端的SFC延迟.
  • 在长期的收入成本比率上取得了实质性的改善.
  • 与现有方法相比,保持了高安全性和服务请求接受率.

结论:

  • 通过ESSFCD-DO方法,有效地优化了SFC在空中交通服务的部署.
  • 该方法平衡了对空中交通管理至关重要的延迟,安全和经济因素.
  • 基于NFV的SFC部署为现代化空中交通信息网络提供了一个可行的解决方案.