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Blockchain Storage and Computation Offloading for Cooperative Mobile-Edge Computing
- Source :
- IEEE Internet of Things Journal. 8:9084-9098
- Publication Year :
- 2021
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2021.
-
Abstract
- To enable more Internet-of-Things (IoT) devices for participating in the Proof-of-Work (PoW) mining process of public blockchains, we propose a cooperative mobile-edge computing (MEC)-aided blockchain network. In the network, devices can offload computation-intensive PoW mining tasks to base stations and store their block data to the cloud service provider. Then, we study the joint computation offloading, block storage, and resource service pricing problem as a three-stage Stackelberg game. We analyze the subgame optimization problem in each stage and propose an iterative algorithm based on backward induction to achieve the Nash equilibrium of the Stackelberg game. Furthermore, we derive the upper bound of the ergodic throughput of the cooperative scheme and the maximum number of devices connected to the network. The analysis shows that the proposed cooperative MEC-aided blockchain network can significantly improve the system throughput, and more devices can access the blockchain network. Analytical results show that the proposed backward induction-based iterative algorithm can efficiently attain the Nash equilibrium of the game. Numerical results show that our proposed backward induction-based iterative algorithm has fast convergence and good stability, and the proposed cooperative scheme can serve more devices in comparison with other noncooperative schemes.
- Subjects :
- Blockchain
Mobile edge computing
Computer Networks and Communications
Computer science
business.industry
Distributed computing
020208 electrical & electronic engineering
020206 networking & telecommunications
Cloud computing
02 engineering and technology
Computer Science Applications
symbols.namesake
Subgame
Hardware and Architecture
Nash equilibrium
Backward induction
Signal Processing
0202 electrical engineering, electronic engineering, information engineering
Stackelberg competition
symbols
Computation offloading
business
Throughput (business)
Information Systems
Subjects
Details
- ISSN :
- 23722541
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- IEEE Internet of Things Journal
- Accession number :
- edsair.doi...........5101b0fc1d93925f0b5b7cbb1c2d0ec4