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Efficient Task Allocation for Computation Offloading in Vehicular Edge Computing
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AI
DOI：10.1109/JIOT.2022.3222408.png)
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摘要
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In vehicular edge computing, the edge servers may be overloaded once too many vehicles request the task offloading service, which will cause task offloading failure or the high service delay. To provide high-quality VEC service, the processing capabilities of the vehicles, the edge servers, and the cloud should be utilized simultaneously in task offloading. In this article, we focus on task offloading allocation for the requesting vehicle and the pricing schemes for the edge server and the cloud. From a market perspective, we model the competition and cooperation among the requesting vehicle, the edge server, and the cloud as a Stackelberg game. Then, based on the backward induction method, we transform the game problem into a convex optimization problem and theoretically prove that the game has a unique Nash equilibrium, thereby the optimal task allocation for the requesting vehicle can be obtained. Meanwhile, a genetic algorithm-based searching algorithm is proposed to find the optimal pricing schemes for the edge server and the cloud, and the proposed algorithm has a rapid convergence due to the convex feature of the objective problem. Simulation results demonstrate that the proposed task allocation strategy has better performance than other solutions in terms of task offloading delay and cost, thus, can make the existing resources fully used to undertake more offloading tasks.
Keyword:
Task analysis
Servers
Cloud computing
Resource management
Games
Edge computing
Delays
Computation offloading
game theory
genetic algorithm (GA)
task allocation
vehicular edge computing (VEC)
期刊
IF:
8.9
论文数:
1.4W
被引数:
7.8W
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