Publication:
Blockchain consensus: An overview of alternative protocols

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dc.citedby33
dc.contributor.authorOyinloye D.P.en_US
dc.contributor.authorTeh J.S.en_US
dc.contributor.authorJamil N.en_US
dc.contributor.authorAlawida M.en_US
dc.contributor.authorid57217828425en_US
dc.contributor.authorid56579944200en_US
dc.contributor.authorid36682671900en_US
dc.contributor.authorid57204860539en_US
dc.date.accessioned2023-05-29T09:06:28Z
dc.date.available2023-05-29T09:06:28Z
dc.date.issued2021
dc.description.abstractBlockchain networks are based on cryptographic notions that include asymmetric-key encryption, hash functions and consensus protocols. Despite their popularity, mainstream protocols, such as Proof of Work or Proof of Stake still have drawbacks. Efforts to enhance these protocols led to the birth of alternative consensus protocols, catering to specific areas, such as medicine or transporta-tion. These protocols remain relatively unknown despite having unique merits worth investigating. Although past reviews have been published on popular blockchain consensus protocols, they do not include most of these lesser-known protocols. Highlighting these alternative consensus protocols contributes toward the advancement of the state of the art, as they have design features that may be useful to academics, blockchain practitioners and researchers. In this paper, we bridge this gap by providing an overview of alternative consensus protocols proposed within the past 3 years. We evaluate their overall performance based on metrics such as throughput, scalability, security, energy consumption, and finality. In our review, we examine the trade-offs that these consensus protocols have made in their attempts to optimize scalability and performance. To the best of our knowledge, this is the first paper that focuses on these alternative protocols, highlighting their unique features that can be used to develop future consensus protocols. � 2021 by the authors. Licensee MDPI, Basel, Switzerland.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo1363
dc.identifier.doi10.3390/sym13081363
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85111946043
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85111946043&doi=10.3390%2fsym13081363&partnerID=40&md5=697818b0144b577a1cc0992b5007d4ab
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/26063
dc.identifier.volume13
dc.publisherMDPI AGen_US
dc.relation.ispartofAll Open Access, Gold
dc.sourceScopus
dc.sourcetitleSymmetry
dc.titleBlockchain consensus: An overview of alternative protocolsen_US
dc.typeReviewen_US
dspace.entity.typePublication
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