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Blockchain-based cloudlet management for multimedia workflow in mobile cloud computing
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DOI：10.1007/s11042-019-07900-x.png)
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For the issue of users' sensibility to the QoS (Quality of Service) of multimedia applications, cloudlet has emerged as a novel paradigm which provides closer computing resources to users to improve the performance of multimedia applications and meet the QoS demands of users. However, the increasing users' requirements of migrating tasks pose a challenge to preserve the security and integrity of offloaded data which are processed by cloudlets. In view of this challenge, a blockchain-based cloudlet management method for multimedia workflow, named MWSM, is proposed in this paper. Technically, we first model each multimedia application as a multimedia workflow and formulate the multimedia workflow scheduling problem. Then, blockchain is adopted to secure the data integrity during the offloading procedure. Besides, NSGA-III (Non-dominated Sorting Genetic Algorithm III) is employed to realize the QoS enhancement and ELECTRE (Elimination Et Choix Tradulsant la REaltite) is utilized to solve the decision-making problems of the most optimal scheduling strategies. Finally, experimental evaluations are conducted to demonstrate the efficiency and potential of our proposed scheduling method.
Keyword:
Blockchain
QoS
Multimedia workflow
Mobile cloud computing
Cloudlet management
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IF:
3
论文数:
1.9W
被引数:
3.2W
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