End-to-End Service Availability in Heterogeneous Multi-Tier Cloud–Fog–Edge Networks

IF 2.8 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS
Future Internet Pub Date : 2023-10-06 DOI:10.3390/fi15100329
Igor Kabashkin
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引用次数: 0

Abstract

With the evolution towards the interconnected future internet spanning satellites, aerial systems, terrestrial infrastructure, and oceanic networks, availability modeling becomes imperative to ensure reliable service. This paper presents a methodology to assess end-to-end availability in complex multi-tiered architectures using a Markov model tailored to the unique characteristics of cloud, fog, edge, and IoT layers. By quantifying individual tier reliability and combinations thereof, the approach enables setting availability targets during the design and evaluation of operational systems. In the paper, a methodology is proposed to construct a Markov model for the reliability of discrete tiers and end-to-end service availability in heterogeneous multi-tier cloud–fog–edge networks, and the model is demonstrated through numerical examples assessing availability in multi-tier networks. The numerical examples demonstrate the adaptability of the model to various topologies from conventional three-tier to arbitrary multi-level architectures. As connectivity becomes ubiquitous across heterogeneous devices and networks, the proposed approach and availability modeling provide an effective tool for reinforcing the future internet’s fault tolerance and service quality.
异构多层云雾边缘网络中的端到端服务可用性
随着未来互联互联网的发展,包括卫星、航空系统、地面基础设施和海洋网络,可用性建模成为确保可靠服务的必要条件。本文提出了一种评估复杂多层架构中端到端可用性的方法,该方法使用了针对云、雾、边缘和物联网层的独特特征量身定制的马尔可夫模型。通过量化单个层的可靠性及其组合,该方法能够在操作系统的设计和评估期间设定可用性目标。本文提出了一种构建异构多层云雾边缘网络中离散层可靠性和端到端服务可用性马尔可夫模型的方法,并通过评估多层网络中可用性的数值算例对该模型进行了验证。数值算例证明了该模型对从传统三层结构到任意多层结构的各种拓扑结构的适应性。随着连接在异构设备和网络中变得无处不在,所提出的方法和可用性建模为增强未来互联网的容错性和服务质量提供了有效的工具。
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来源期刊
Future Internet
Future Internet Computer Science-Computer Networks and Communications
CiteScore
7.10
自引率
5.90%
发文量
303
审稿时长
11 weeks
期刊介绍: Future Internet is a scholarly open access journal which provides an advanced forum for science and research concerned with evolution of Internet technologies and related smart systems for “Net-Living” development. The general reference subject is therefore the evolution towards the future internet ecosystem, which is feeding a continuous, intensive, artificial transformation of the lived environment, for a widespread and significant improvement of well-being in all spheres of human life (private, public, professional). Included topics are: • advanced communications network infrastructures • evolution of internet basic services • internet of things • netted peripheral sensors • industrial internet • centralized and distributed data centers • embedded computing • cloud computing • software defined network functions and network virtualization • cloud-let and fog-computing • big data, open data and analytical tools • cyber-physical systems • network and distributed operating systems • web services • semantic structures and related software tools • artificial and augmented intelligence • augmented reality • system interoperability and flexible service composition • smart mission-critical system architectures • smart terminals and applications • pro-sumer tools for application design and development • cyber security compliance • privacy compliance • reliability compliance • dependability compliance • accountability compliance • trust compliance • technical quality of basic services.
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