Title
Intelligent Rapid Adaptive Offloading Algorithm for Computational Services in Dynamic Internet of Things System.
Abstract
As restricted resources have seriously limited the computational performance of massive Internet of things (IoT) devices, better processing capability is urgently required. As an innovative technology, multi-access edge computing can provide cloudlet capabilities by offloading computation-intensive services from devices to a nearby edge server. This paper proposes an intelligent rapid adaptive offloading (IRAO) algorithm for a dynamic IoT system to increase overall computational performance and simultaneously keep the fairness of multiple participants, which can achieve agile centralized control and solve the joint optimization problems related to offloading policy and resource allocation. For reducing algorithm execution time, we apply machine learning methods and construct an adaptive learning-based framework consisting of offloading decision-making, radio resource slicing and algorithm parameters updating. In particular, the offloading policy can be rapidly derived from an estimation algorithm based on a deep neural network, which uses an experience replay training method to improve model accuracy and adopts an asynchronous sampling trick to enhance training convergence performance. Extensive simulations with different parameters are conducted to maintain the trade-off between accuracy and efficiency of the IRAO algorithm. Compared with other candidates, the results illustrate that the IRAO algorithm can achieve superior performance in terms of scalability, effectiveness and efficiency.
Year
DOI
Venue
2019
10.3390/s19153423
SENSORS
Keywords
Field
DocType
deep neural network,edge computing,Internet of things,offloading policy,resource allocation
Edge computing,Cloudlet,Algorithm,Agile software development,Resource allocation,Engineering,Artificial neural network,Optimization problem,Adaptive learning,Scalability
Journal
Volume
Issue
Citations 
19
15.0
1
PageRank 
References 
Authors
0.36
0
6
Name
Order
Citations
PageRank
Xuejing Li121.38
Yajuan Qin218721.81
Huachun Zhou337054.39
Yongtao Cheng410.36
Zhewei Zhang551.88
Zheng-Yang Ai6332.96