D3PG: Dirichlet DDPG for Task Partitioning and Offloading with Constrained Hybrid Action Space in Mobile Edge Computing
Laha Ale, Scott A. King, Ning Zhang, Abdul Rahman Sattar, Janahan, Skandaraniyam

TL;DR
This paper introduces D3PG, a novel deep reinforcement learning algorithm designed to optimize task partitioning and resource allocation in mobile edge computing, effectively handling constrained hybrid action spaces for improved performance.
Contribution
The paper proposes D3PG, a new DRL algorithm that manages constrained hybrid action spaces for joint task offloading and resource allocation in MEC environments.
Findings
D3PG outperforms existing methods in simulations.
Effective handling of hybrid action spaces in MEC optimization.
Improved task processing and reduced latency.
Abstract
Mobile Edge Computing (MEC) has been regarded as a promising paradigm to reduce service latency for data processing in the Internet of Things, by provisioning computing resources at the network edge. In this work, we jointly optimize the task partitioning and computational power allocation for computation offloading in a dynamic environment with multiple IoT devices and multiple edge servers. We formulate the problem as a Markov decision process with constrained hybrid action space, which cannot be well handled by existing deep reinforcement learning (DRL) algorithms. Therefore, we develop a novel Deep Reinforcement Learning called Dirichlet Deep Deterministic Policy Gradient (D3PG), which is built on Deep Deterministic Policy Gradient (DDPG) to solve the problem. The developed model can learn to solve multi-objective optimization, including maximizing the number of tasks processed…
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