Priority-Aware Resource Management for Adaptive Service Function Chaining in Real-Time Intelligent IoT Services

The growth of the Internet of Things (IoT) in various mission-critical applications generates service heterogeneity with different priority labels. A set of virtual network function (VNF) orders represents service function chaining (SFC) for a particular service to robustly execute in a network func...

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Veröffentlicht in:Electronics (Basel) 2022-10, Vol.11 (19), p.2976
Hauptverfasser: Tam, Prohim, Math, Sa, Kim, Seokhoon
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container_title Electronics (Basel)
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creator Tam, Prohim
Math, Sa
Kim, Seokhoon
description The growth of the Internet of Things (IoT) in various mission-critical applications generates service heterogeneity with different priority labels. A set of virtual network function (VNF) orders represents service function chaining (SFC) for a particular service to robustly execute in a network function virtualization (NFV)-enabled environment. In IoT networks, the configuration of adaptive SFC has emerged to ensure optimality and elasticity of resource expenditure. In this paper, priority-aware resource management for adaptive SFC is provided by modeling the configuration of real-time IoT service requests. The problem models of the primary features that impact the optimization of configuration times and resource utilization are studied. The proposed approaches query the promising embedded deep reinforcement learning engine in the management layer (e.g., orchestrator) to observe the state features of VNFs, apply the action on instantiating and modifying new/created VNFs, and evaluate the average transmission delays for end-to-end IoT services. In the embedded SFC procedures, the agent formulates the function approximator for scoring the existing chain performance metrics. The testbed simulation was conducted in SDN/NFV topologies and captured the average of rewards, delays, delivery ratio, and throughput as −48.6666, 10.9766 ms, 99.9221%, and 615.8441 Mbps, which outperformed other reference approaches, following parameter configuration in this environment.
doi_str_mv 10.3390/electronics11192976
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subjects Chaining
Classification
Configurations
Costs
Decision making
Deep learning
Heterogeneity
Integer programming
Internet of Things
Markov analysis
Methods
Optimization
Performance measurement
Real time
Reinforcement learning (Machine learning)
Resource allocation
Resource management
Resource utilization
Topology
Virtual networks
Virtualization
title Priority-Aware Resource Management for Adaptive Service Function Chaining in Real-Time Intelligent IoT Services
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