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Groupchain: Towards a Scalable Public Blockchain in Fog Computing of IoT Services Computing

机译：Groupchain：朝着IoT服务计算的雾计算中的可扩展公共区块链

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摘要

Powered by a number of smart devices distributed throughout the whole network, the Internet of Things (IoT) is supposed to provide services computing for massive data from devices. Fog computing, an extension of cloud-based IoT-oriented solutions, has emerged with requirements for distribution and decentralization. In this respect, the conjunction with Blockchain provides a natural solution for decentralization, as well as potentially helps fog computing overcome some deficiencies such as security and privacy then consequently expand the application scope of IoT. However, one of the key challenges of blockchain's integration with fog computing is scalability. To end this, this work proposes Groupchain, a novel scalable public blockchain of a two-chain structure suitable for fog computing of IoT services computing. Groupchain employs the leader group to collectively commit blocks for higher transaction efficiency and introduces bonus and deposit into the incentive mechanism to supervise behaviors of members in the leader group. Our security analysis shows that Groupchain retains the security of Bitcoin-like blockchain and enhances defense against attacks such as double-spend and selfish mining. We implement a prototype of Groupchain and conducted experiments. The experimental results demonstrate that Groupchain achieves optimization on transaction throughput and confirmation latency which are argued in Bitcoin.
机译：由在整个网络中分布的许多智能设备供电，内容Internet（IoT）应该为来自设备的大规模数据提供服务。雾计算是基于云的IOS的解决方案的扩展，已经出现了分配和权力下放的要求。在这方面，与区块链的结合提供了分散化的自然解决方案，以及可能有助于雾计算克服一些缺陷，如安全性和隐私，因此扩展了IOT的应用范围。然而，区块链与雾计算集成的关键挑战之一是可扩展性。要结束这一点，这项工作提出了一种用于双链结构的新型可扩展公共区块，适用于IOT服务计算的雾化计算。 Groupchain采用领导集团集体拨入更高的交易效率的块，并介绍奖金并存入奖励机制，以监督领导集团成员的行为。我们的安全分析表明，Groupchain保留了比特币状区块链的安全性，并增强防御双重支出和自私挖掘等攻击。我们实施了Groupchain的原型并进行了实验。实验结果表明，Gratschain在比特币中所谓的交易吞吐量和确认等待时间实现了优化。

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  • 来源
    《Services Computing, IEEE Transactions on》 |2020年第2期|252-262|共11页
  • 作者

    Lei Kai; Du Maoyu; Huang Jiyue; Jin Tong;

  • 作者单位

    Peking Univ Shenzhen Key Lab Informat Centr Networking & Bloc Sch Elect & Comp Engn Shenzhen 518055 Peoples R China|PCL Res Ctr Networks & Commun Peng Cheng Lab Shenzhen 518066 Peoples R China;

    Peking Univ Shenzhen Key Lab Informat Centr Networking & Bloc Sch Elect & Comp Engn Shenzhen 518055 Peoples R China|PCL Res Ctr Networks & Commun Peng Cheng Lab Shenzhen 518066 Peoples R China;

    Peking Univ Shenzhen Key Lab Informat Centr Networking & Bloc Sch Elect & Comp Engn Shenzhen 518055 Peoples R China|PCL Res Ctr Networks & Commun Peng Cheng Lab Shenzhen 518066 Peoples R China;

    Peking Univ Sch Elect & Comp Engn Shenzhen Key Lab Cloud Comp Technol & Applicat Shenzhen 518055 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Public blockchain; two-chain; leader group; scalability; internet of things (IoT) service;

    机译：公共区块链;双链;领导组;可扩展性;物联网（物联网）服务;

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