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Joint Resource Allocation and Multi-Part Collaborative Task Offloading in MEC Systems
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DOI：10.1109/TVT.2022.3174530.png)
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摘要
En 中文
This paper investigates the multi-part collaborative task offloading with multiple servers in mobile edge computing (MEC) systems by considering server overload and long-term system performance. Our goal is to achieve the optimal user experience within the range of the network operator's affordable cost. To this end, we design a two-layer computation offloading framework based on the multi-part offloading mode and the collaborations among small cell base station (SBS) servers. Furthermore, a multi-object constrained optimization problem is formulated, which jointly optimizes user association, channel allocation, and multi-part collaborative task offloading. To solve this problem, we propose a Genetic and Deep Deterministic Policy Gradient (GADDPG)-based computation offloading scheme, where the long-term system performance is considered. Numerical and simulation results demonstrate that the proposed GADDPG-based computation offloading scheme outperforms other methods in effectively solving the server overload and guarantees long-term system performances while ensuring the best user experience.
Keyword:
Task analysis
Servers
Collaboration
Resource management
Optimization
Computational modeling
System performance
Channel allocation
Genetic and Deep Deterministic Policy Gradient (GADDPG)
mobile edge computing (MEC)
multi-part collaborative task offloading
user allocation
期刊
IF:
7.1
论文数:
1.8W
被引数:
6.6W
机构
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