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Deployment optimization of multi-stage investment portfolio service and hybrid intelligent algorithm under edge computing
The purposes are to improve the server deployment capability under Mobile Edge Computing (MEC), reduce the time delay and energy consumption of terminals during task execution, and improve user service quality. After the server deployment problems under traditional edge computing are analyzed and re...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8177502/ https://www.ncbi.nlm.nih.gov/pubmed/34086735 http://dx.doi.org/10.1371/journal.pone.0252244 |
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author | Zhang, Xuecong Shen, Haolang Lv, Zhihan |
author_facet | Zhang, Xuecong Shen, Haolang Lv, Zhihan |
author_sort | Zhang, Xuecong |
collection | PubMed |
description | The purposes are to improve the server deployment capability under Mobile Edge Computing (MEC), reduce the time delay and energy consumption of terminals during task execution, and improve user service quality. After the server deployment problems under traditional edge computing are analyzed and researched, a task resource allocation model based on multi-stage is proposed to solve the communication problem between different supporting devices. This model establishes a combined task resource allocation and task offloading method and optimizes server execution by utilizing the time delay and energy consumption required for task execution and comprehensively considering the restriction processes of task offloading, partition, and transmission. For the MEC process that supports dense networks, a multi-hybrid intelligent algorithm based on energy consumption optimization is proposed. The algorithm converts the original problem into a power allocation problem via a heuristic model. Simultaneously, it determines the appropriate allocation strategy through distributed planning, duality, and upper bound replacement. Results demonstrate that the proposed multi-stage combination-based service deployment optimization model can solve the problem of minimizing the maximum task execution energy consumption combined with task offloading and resource allocation effectively. The algorithm has good performance in handling user fairness and the worst-case task execution energy consumption. The proposed hybrid intelligent algorithm can partition tasks into task offloading sub-problems and resource allocation sub-problems, meeting the user’s task execution needs. A comparison with the latest algorithm also verifies the model’s performance and effectiveness. The above results can provide a theoretical basis and some practical ideas for server deployment and applications under MEC. |
format | Online Article Text |
id | pubmed-8177502 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-81775022021-06-07 Deployment optimization of multi-stage investment portfolio service and hybrid intelligent algorithm under edge computing Zhang, Xuecong Shen, Haolang Lv, Zhihan PLoS One Research Article The purposes are to improve the server deployment capability under Mobile Edge Computing (MEC), reduce the time delay and energy consumption of terminals during task execution, and improve user service quality. After the server deployment problems under traditional edge computing are analyzed and researched, a task resource allocation model based on multi-stage is proposed to solve the communication problem between different supporting devices. This model establishes a combined task resource allocation and task offloading method and optimizes server execution by utilizing the time delay and energy consumption required for task execution and comprehensively considering the restriction processes of task offloading, partition, and transmission. For the MEC process that supports dense networks, a multi-hybrid intelligent algorithm based on energy consumption optimization is proposed. The algorithm converts the original problem into a power allocation problem via a heuristic model. Simultaneously, it determines the appropriate allocation strategy through distributed planning, duality, and upper bound replacement. Results demonstrate that the proposed multi-stage combination-based service deployment optimization model can solve the problem of minimizing the maximum task execution energy consumption combined with task offloading and resource allocation effectively. The algorithm has good performance in handling user fairness and the worst-case task execution energy consumption. The proposed hybrid intelligent algorithm can partition tasks into task offloading sub-problems and resource allocation sub-problems, meeting the user’s task execution needs. A comparison with the latest algorithm also verifies the model’s performance and effectiveness. The above results can provide a theoretical basis and some practical ideas for server deployment and applications under MEC. Public Library of Science 2021-06-04 /pmc/articles/PMC8177502/ /pubmed/34086735 http://dx.doi.org/10.1371/journal.pone.0252244 Text en © 2021 Zhang et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Zhang, Xuecong Shen, Haolang Lv, Zhihan Deployment optimization of multi-stage investment portfolio service and hybrid intelligent algorithm under edge computing |
title | Deployment optimization of multi-stage investment portfolio service and hybrid intelligent algorithm under edge computing |
title_full | Deployment optimization of multi-stage investment portfolio service and hybrid intelligent algorithm under edge computing |
title_fullStr | Deployment optimization of multi-stage investment portfolio service and hybrid intelligent algorithm under edge computing |
title_full_unstemmed | Deployment optimization of multi-stage investment portfolio service and hybrid intelligent algorithm under edge computing |
title_short | Deployment optimization of multi-stage investment portfolio service and hybrid intelligent algorithm under edge computing |
title_sort | deployment optimization of multi-stage investment portfolio service and hybrid intelligent algorithm under edge computing |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8177502/ https://www.ncbi.nlm.nih.gov/pubmed/34086735 http://dx.doi.org/10.1371/journal.pone.0252244 |
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