Journal
INTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS
Volume 37, Issue 11, Pages 8365-8386Publisher
WILEY-HINDAWI
DOI: 10.1002/int.22943
Keywords
cooperative offloading; decision-making; intelligent computing; mobile edge computing; resource allocation
Categories
Funding
- National Natural Science Foundation of China [62072475, 61772554]
- Hunan Provincial Innovation Foundation for Postgraduate
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In this paper, a differential dynamic gradient descent (DDGD) optimization algorithm is proposed to solve the offloading decision and resource allocation problems in multiuser cooperative offloading mobile edge computing (COMEC) system. The algorithm can obtain better optimization solutions.
The multiuser cooperative offloading mobile edge computing (COMEC) system has attracted much attention because it can realize delay-sensitive tasks. However, in the coupling optimization of offloading decision and resource allocation, the existing numerical optimization algorithms are difficult to obtain high-quality optimization solutions. In this paper, we propose a differential dynamic gradient descent (DDGD) optimization algorithm to solve the above optimization problems. DDGD algorithm decomposes the constrained NP-hard optimization problem into two network layers and integrates the constraint function into a larger end-to-end training network. These two-layer networks encode the dependencies and optimization constraints between parameter hidden states, which cannot be captured by a numerical optimization model or a full connection layer neural network. Because the ring learning and self-repeating learning architecture are adopted and the information is stored in the differential dynamics network, the proposed algorithm can achieve better and more intelligent decision-making in searching the solution trajectory without setting accurate parameters in advance and reduce the complexity of the network. We show that compared with the baseline method, the DDGD method has superior optimization performance in the energy consumption optimization of COMEC.
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