Combinatorial resources auction in decentralized edge-thing systems using blockchain and differential privacy

【Author】 Guo, Jianxiong; Ding, Xingjian; Wang, Tian; Jia, Weijia

【Source】INFORMATION SCIENCES

【影响因子】8.233

【Abstract】With the continuous expansion of Internet of Things (IoT) devices, edge computing mode has emerged in recent years to overcome the shortcomings of traditional cloud computing mode, such as high delay, network congestion, and large resource consumption. Thus, edge-thing systems will replace the classic cloud-thing/cloud-edge-thing systems and become mainstream gradually, where IoT devices can offload their tasks to neighboring edge nodes. A common problem is how to utilize edge computing resources. For the sake of fairness, double auction can be used in the edge-thing system to achieve an effective resource allocation and pricing mechanism. Due to the lack of third-party management agencies and mutual distrust between nodes, in our edge-thing systems, we introduce blockchains to prevent malicious nodes from tampering with transaction records and smart contracts to act as an auctioneer to realize resources auction. Since the auction results stored in this blockchain-based system are transparent, they are threatened with inference attacks. Thus in this paper, we design a differentially private combinatorial dou-ble auction mechanism by exploring the exponential mechanism such that maximizing the revenue of edge computing platform, in which each IoT device requests a resource bundle and edge nodes compete with each other to provide resources. It can not only guarantee approximate truthfulness and high revenue, but also ensure privacy security. Through nec-essary theoretical analysis and numerical simulations, the effectiveness of our proposed mechanisms can be validated.(c) 2022 Elsevier Inc. All rights reserved.

【Keywords】Internet of Things; Blockchain; Smart contract; Edge-thing system; Combinatorial auction; Truthfulness; Revenue; Differential privacy

【发表时间】2022 AUG

【收录时间】2022-07-17

【文献类型】实证性文章

【主题类别】

区块链技术-协同技术-边缘计算