Function traffic-aware VNF migration for service restoration in an NFV-enabled IoT system

IF 4.1 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

ICT Express Pub Date : 2024-04-01 DOI:10.1016/j.icte.2023.11.004

Tuan-Minh Pham , Thi-Minh Nguyen

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引用次数: 0

Abstract

Maintaining a service continuum is crucial for providing a reliable service in an Internet-of-Things (IoT) system based on Network Function Virtualization (NFV) due to the distribution of Virtual Network Functions (VNF). We address the optimization problem of VNF migration in an NFV-enabled IoT system (NIoT), considering the dynamics of traffic volume processed by an individual IoT function. We develop an optimization model based on integer linear programming and a function traffic-aware heuristic algorithm to solve the problem. The evaluation results show that our proposed heuristic algorithm offers an approximation solution very close to the optimal VNF migration in significantly reduced time. It outperforms a benchmark solution based on Simulated Annealing in both the service restoration cost and computation time. Furthermore, our findings provide valuable insights into an investment strategy for an IoT service provider seeking to enhance the system performance in the presence of a failure.

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在支持 NFV 的物联网系统中进行功能流量感知 VNF 迁移以恢复服务

由于虚拟网络功能（VNF）的分布，要在基于网络功能虚拟化（NFV）的物联网（IoT）系统中提供可靠的服务，保持服务连续性至关重要。考虑到单个物联网功能所处理流量的动态变化，我们解决了 NFV 支持的物联网系统（NIoT）中 VNF 迁移的优化问题。我们开发了一种基于整数线性规划的优化模型和一种功能流量感知启发式算法来解决该问题。评估结果表明，我们提出的启发式算法能在显著缩短的时间内提供非常接近最佳 VNF 迁移的近似解决方案。在服务恢复成本和计算时间方面，它都优于基于模拟退火的基准解决方案。此外，我们的研究结果还为物联网服务提供商寻求在出现故障时提高系统性能的投资策略提供了宝贵的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ICT Express Multiple-

CiteScore

10.20

自引率

1.90%

发文量

167

审稿时长

35 weeks

期刊介绍： The ICT Express journal published by the Korean Institute of Communications and Information Sciences (KICS) is an international, peer-reviewed research publication covering all aspects of information and communication technology. The journal aims to publish research that helps advance the theoretical and practical understanding of ICT convergence, platform technologies, communication networks, and device technologies. The technology advancement in information and communication technology (ICT) sector enables portable devices to be always connected while supporting high data rate, resulting in the recent popularity of smartphones that have a considerable impact in economic and social development.