基于区块链的分布式激励机制研究

Incentive mechanisms play an important role in promoting resource sharing, mobile crowdsensing, and cooperative communication, which in return improve the service quality and efficiency in information networks. As the incentive mechanisms relayed on a ‘trusted’ center bring the threats of distrust and system crash, this project aims to propose a series of distributed incentive mechanisms, which can enhance the tolerance and security of the system by supporting the properties of truthfulness, privacy protection and scalability. Key innovations of this project include the truthful incentive mechanism against collusion attacks, the privacy-preserving incentive mechanism based on node cooperation, and the scalable incentive mechanism based on smart contracts. The project members have published several papers about incentive mechanism and privacy preserving in prestigious conferences and premier journals, including IEEE ACCESS、WASA、INFOCOM and IEEE Communications Magazine. Through this project, we expect to publish 8 research papers, among which 2-3 papers are expected to be published in prestigious conference such as INFOCOM and MobiHoc, and 4 papers are expected to be published in premier SCI journals. Furthermore, we will apply for 2-3 patents, and train more than 6 graduate students.

激励机制在推动资源共享、激发群智感知、促进协作通信等方面有着重要作用，是提升信息网络服务质量与效率的关键。由于依赖于可信中心的激励机制存在信任缺失和安全性问题，本项目研究基于区块链的分布式激励方式来增强系统的容灾性和安全性。本项目针对基于区块链的激励方式面临的三大问题，研究具有安全可信、隐私保护和可扩展性的激励机制。本项目拟在抗合谋攻击的安全可信激励机制，基于节点协作的隐私保护激励机制和基于智能合约的可扩展激励机制三个方面有所突破并取得创新成果。项目组在基于区块链的激励机制的工作中获得WASA 2017最佳论文提名，相关成果已在IEEE Communications Magazine、IEEE ACCESS、IJDSN等SCI期刊上发表。预期成果包括发表高水平论文8篇，争取其中2-3篇发表在CCF C类以上会议上，4篇发表在SCI期刊上，申请发明专利2-3项，培养研究生6名以上。

针对现有可信中心的激励机制存在权威欺骗和安全性问题，项目组从激励机制的安全可信、隐私保护和可扩展性开展研究工作。项目取得了一系列有价值的研究成果，包括抗合谋攻击的安全可信激励机制、基于节点协作的隐私保护激励机制、基于智能合约的可扩展激励机制；构建了基于区块链的激励机制的验证与演示系统。项目组已在国内外有影响的期刊和国际会议上发表论文21篇，其中包括中科院1区IEEE IoTJ、IEEE Transactions在内的SCI检索7篇，EI检索10篇，国际会议IEEE INFOCOM/WASA/ICC/发表学术论文4篇，其中1篇论文Google学术引用量达到186次；相关的区块链的安全可信技术获得了吴文俊人工智能科学技术奖三等奖；提交国家发明专利10项，其中4项已授权；1名教师晋升教授，2名教师晋升副教授；培养了一批研究生并获得国家奖学金等多项荣誉。