Making Big Data Open in Collaborative Edges: A Blockchain-based Framework with Reduced Resource Requirements

被引:0
|
作者
Xu, Chenhan [1 ]
Wang, Kun [1 ,2 ]
Xu, Guoliang [3 ]
Li, Peng [4 ]
Guo, Song [2 ]
Luo, Jiangtao [3 ]
机构
[1] Nanjing Univ Posts & Telecommun, Nanjing, Peoples R China
[2] Hong Kong Polytech Univ, Hong Kong, Peoples R China
[3] Chongqing Univ Posts & Telecommun, Chongqing, Peoples R China
[4] Univ Aizu, Aizu Wakamatsu, Fukushima, Japan
基金
中国博士后科学基金;
关键词
Big data; blockchain; collaborative edges; transaction offloading; consensus mechanism; DATA ANALYTICS;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
With the emergence of edge computing in various applications domains, end users are now surrounded by a fast growing volume of data from edge devices belonging to different stakeholders. However, these edge devices cannot cooperate to share big data because of the distrust among them. In this paper, the blockchain is deployed in collaborative edges by exploiting the non-repudiation and non-tampering properties to enable trust. First, we develop a blockchain based big data sharing framework in collaborative edges for adapting to the limited computational and storage resources in edge devices. Then, a consensus mechanism called Proof-of-Collaboration (PoC) is proposed for computational resources reduction in our proposed framework, where edge devices offer their credits of PoC to compete for the block generation. Moreover, we put forward a futile transaction filter algorithm for transaction offloading, greatly reducing the storage resources occupied by the blockchain in edges. Extensive experiments are performed to demonstrate the superior performance of our proposal.
引用
收藏
页数:6
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