KNN-Based Consensus Algorithm for Better Service Level Agreement in Blockchain as a Service (BaaS) Systems

With services in cloud manufacturing expanding, cloud manufacturers increasingly use service level agreements (SLAs) to guarantee business processing cooperation between CSPs and CSCs (cloud service providers and cloud service consumers). Although blockchain and smart contract technologies are criti...

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Bibliographic Details
Published in:Electronics (Basel) Vol. 12; no. 6; p. 1429
Main Authors: Zheng, Qingxiao, Wang, Lingfeng, He, Jin, Li, Taiyong
Format: Journal Article
Language:English
Published: Basel MDPI AG 01.03.2023
Subjects:
Agreements
Algorithms
Analysis
Blockchain
Classification
Cloud computing
Cryptography
Customer services
Decentralization
Digital currencies
Internet of Things
Quality of service
Service level agreements
Software as a service
China
ISSN:2079-9292, 2079-9292
Online Access:Get full text
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Summary:With services in cloud manufacturing expanding, cloud manufacturers increasingly use service level agreements (SLAs) to guarantee business processing cooperation between CSPs and CSCs (cloud service providers and cloud service consumers). Although blockchain and smart contract technologies are critical innovations in cloud computing, consensus algorithms in Blockchain as a Service (BaaS) systems often overlook the importance of SLAs. In fact, SLAs play a crucial role in establishing clear commitments between a service provider and a customer. There are currently no effective consensus algorithms that can monitor the SLA and provide service level priority. To address this issue, we propose a novel KNN-based consensus algorithm that classifies transactions based on their priority. Any factor that impacts the priority of the transaction can be used to calculate the distance in the KNN algorithm, including the SLA definition, the smart contract type, the CSC type, and the account type. This paper demonstrates the full functionality of the enhanced consensus algorithm. With this new method, the CSP in BaaS systems can provide improved services to the CSC. Experimental results obtained by adopting the enhanced consensus algorithm show that the SLA is better satisfied in the BaaS systems.
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ISSN:2079-9292
2079-9292
DOI:10.3390/electronics12061429