Open AccessTask offloading and resource allocation algorithm based on mobile edge computing in Internet of Things environment
Author(s) -
Liu Junwei
Publication year - 2021
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/tje2.12056
Subject(s) - computer science , mobile edge computing , lyapunov optimization , energy consumption , base station , queue , nash equilibrium , resource allocation , enhanced data rates for gsm evolution , computation offloading , real time computing , mathematical optimization , computer network , edge computing , telecommunications , engineering , lyapunov redesign , lyapunov exponent , mathematics , artificial intelligence , chaotic , electrical engineering
This paper proposes a task offloading and resource allocation algorithm based on mobile edge computing. Firstly, for the long‐term performance optimization of small base stations, the system model is established according to task arrival characteristics, credit relationship between small base stations, time delay and energy consumption of computing tasks and cable channel congestion. Secondly, the energy consumption deficit queue based on Lyapunov drift penalty technology used for the energy consumption constraint of small base stations in long‐term optimization process. The energy consumption deficit queue is established for each small base station to couple the energy consumption and time of small base stations, so that small base stations can meet the energy consumption constraints in long‐term optimization process. Finally, game theory is introduced to calculate offloading weight by the offloading weight model based on Shapley value. Besides, the offloading weight is calculated equitably according to the return of different tasks. Simulation results on MATLAB platform show that the proposed algorithm can achieve Nash equilibrium after finite iterations. Moreover, its performance on energy consumption, time delay and number of tasks successfully offloaded is better than other comparison strategies.