<p>The solution of proof-of-work in blockchain requires a large amount of resources; the lack of computing power on mobile devices limits the development of blockchain in mobile applications. In order to cope with the problem of insufficient resources on mobile devices, the combination of blockchain and Mobile Edge Computing has attracted much attention. In this paper, we consider an edge-enabled blockchain system containing two types of miners and a single Edge Service Provider (ESP). Different types of miners have different resource requirements and corresponding prices. Each miner makes a computation offloading decision based on the resource price set by ESP. Different miners possess varying resource requirements and correspond to distinct prices. Miners formulate task offloading decisions based on the prices set by ESP for different resource types. The ESP dynamically adjusts resource price based on miners’ offloading requests and makes admission control according to resource usage in each time slot. The problem is a joint optimization problem of computation offloading, price strategy, and admission control, which is challenging to solve due to the interaction among three issues. In this paper, we model the problem as a sequential decision-making problem and use a dynamic programming algorithm to obtain the optimal solution. Through simulation experiments, our results demonstrate that the proposed algorithm can effectively improve the overall social utility.</p>

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Optimal computation offloading, dynamic pricing and admission control for mobile edge computing-enabled blockchain

  • Liming Chen,
  • Yi Liu,
  • Wenjie Zhang,
  • Yifeng Zheng,
  • Liwei Yang,
  • Chai Kiat Yeo

摘要

The solution of proof-of-work in blockchain requires a large amount of resources; the lack of computing power on mobile devices limits the development of blockchain in mobile applications. In order to cope with the problem of insufficient resources on mobile devices, the combination of blockchain and Mobile Edge Computing has attracted much attention. In this paper, we consider an edge-enabled blockchain system containing two types of miners and a single Edge Service Provider (ESP). Different types of miners have different resource requirements and corresponding prices. Each miner makes a computation offloading decision based on the resource price set by ESP. Different miners possess varying resource requirements and correspond to distinct prices. Miners formulate task offloading decisions based on the prices set by ESP for different resource types. The ESP dynamically adjusts resource price based on miners’ offloading requests and makes admission control according to resource usage in each time slot. The problem is a joint optimization problem of computation offloading, price strategy, and admission control, which is challenging to solve due to the interaction among three issues. In this paper, we model the problem as a sequential decision-making problem and use a dynamic programming algorithm to obtain the optimal solution. Through simulation experiments, our results demonstrate that the proposed algorithm can effectively improve the overall social utility.