Blockchain-Enabled Secure Data Sharing Scheme in Mobile-Edge Computing: An Asynchronous Advantage Actor-Critic Learning Approach

Mobile-edge computing (MEC) plays a significant role in enabling diverse service applications by implementing efficient data sharing. However, the unique characteristics of MEC also bring data privacy and security problem, which impedes the development of MEC. Blockchain is viewed as a promising tec...

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Bibliographic Details
Published in:IEEE internet of things journal 2021-02, Vol.8 (4), p.2342-2353
Main Authors: Liu, Lei, Feng, Jie, Pei, Qingqi, Chen, Chen, Ming, Yang, Shang, Bodong, Dong, Mianxiong
Format: Article
Language:English
Subjects:
Adaptive systems
Algorithms
Blockchain
Cryptography
Data retrieval
data sharing
deep reinforcement learning (DRL)
Device-to-device communication
Dynamic characteristics
Edge computing
Energy consumption
Information sharing
Learning
Mobile computing
Mobile handsets
mobile-edge computing (MEC)
Optimization
Privacy
Security
security and privacy
Servers
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Summary:Mobile-edge computing (MEC) plays a significant role in enabling diverse service applications by implementing efficient data sharing. However, the unique characteristics of MEC also bring data privacy and security problem, which impedes the development of MEC. Blockchain is viewed as a promising technology to guarantee the security and traceability of data sharing. Nonetheless, how to integrate blockchain into MEC system is quite challenging because of dynamic characteristics of channel conditions and network loads. To this end, we propose a secure data sharing scheme in the blockchain-enabled MEC system using an asynchronous learning approach in this article. First, a blockchain-enabled secure data sharing framework in the MEC system is presented. Then, we present an adaptive privacy-preserving mechanism according to available system resources and privacy demands of users. Next, an optimization problem of secure data sharing is formulated in the blockchain-enabled MEC system with the aim to maximize the system performance with respect to the decreased energy consumption of MEC system and the increased throughput of blockchain system. Especially, an asynchronous learning approach is employed to solve the formulated problem. The numerical results demonstrate the superiority of our proposed secure data sharing scheme when compared with some popular benchmark algorithms in terms of average throughput, average energy consumption, and reward.
ISSN:2327-4662
2327-4662
DOI:10.1109/JIOT.2020.3048345