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Suppl. Mater.: 
CLC number: TP301.6
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2023-11-13
Cited: 0
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Citations: Bibtex RefMan EndNote GB/T7714
https://orcid.org/0000-0001-9273-616X
A multi-agent collaboration scheme for energy-efficient task scheduling in a 3D UAV-MEC space
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Yang LI, Ziling WEI, Jinshu SU, Baokang ZHAO. A multi-agent collaboration scheme for energy-efficient task scheduling in a 3D UAV-MEC space[J]. Frontiers of Information Technology & Electronic Engineering, 2024, 25(6): 824-838.
@article{title="A multi-agent collaboration scheme for energy-efficient task scheduling in a 3D UAV-MEC space",
author="Yang LI, Ziling WEI, Jinshu SU, Baokang ZHAO",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="25",
number="6",
pages="824-838",
year="2024",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.2300393"
}
%0 Journal Article
%T A multi-agent collaboration scheme for energy-efficient task scheduling in a 3D UAV-MEC space
%A Yang LI
%A Ziling WEI
%A Jinshu SU
%A Baokang ZHAO
%J Frontiers of Information Technology & Electronic Engineering
%V 25
%N 6
%P 824-838
%@ 2095-9184
%D 2024
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.2300393
TY - JOUR
T1 - A multi-agent collaboration scheme for energy-efficient task scheduling in a 3D UAV-MEC space
A1 - Yang LI
A1 - Ziling WEI
A1 - Jinshu SU
A1 - Baokang ZHAO
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 25
IS - 6
SP - 824
EP - 838
%@ 2095-9184
Y1 - 2024
PB - Zhejiang University Press & Springer
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DOI - 10.1631/FITEE.2300393
Abstract: multi-access edge computing (MEC) presents computing services at the edge of networks to address the enormous processing requirements of intelligent applications. Due to the maneuverability of unmanned aerial vehicles (UAVs), they can be used as temporal aerial edge nodes for providing edge services to ground users in MEC. However, MEC environment is usually dynamic and complicated. It is a challenge for multiple UAVs to select appropriate service strategies. Besides, most of existing works study UAV-MEC with the assumption that the flight heights of UAVs are fixed; i.e., the flying is considered to occur with reference to a two-dimensional plane, which neglects the importance of the height. In this paper, with consideration of the co-channel interference, an optimization problem of energy efficiency is investigated to maximize the number of fulfilled tasks, where multiple UAVs in a three-dimensional space collaboratively fulfill the task computation of ground users. In the formulated problem, we try to obtain the optimal flight and sub-channel selection strategies for UAVs and schedule strategies for tasks. Based on the multi-agent deep deterministic policy gradient (MADDPG) algorithm, we propose a curiosity-driven and twin-networks-structured MADDPG (CTMADDPG) algorithm to solve the formulated problem. It uses the inner reward to facilitate the state exploration of agents, avoiding convergence at the sub-optimal strategy. Furthermore, we adopt the twin critic networks for update stabilization to reduce the probability of Q value overestimation. The simulation results show that CTMADDPG is outstanding in maximizing the energy efficiency of the whole system and outperforms the other benchmarks.
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