Secure Sum Rate and Optimization in IRS-Assisted Dispersed Computing Network Based on Robust Deep Reinforcement Learning

LI Jiaxin; WANG Jianping; LIU Zhibin; LIN Fuhong

doi:10.12263/DZXB.20260219

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Secure Sum Rate and Optimization in IRS-Assisted Dispersed Computing Network Based on Robust Deep Reinforcement Learning

更新时间：2026-06-09

- Secure Sum Rate and Optimization in IRS-Assisted Dispersed Computing Network Based on Robust Deep Reinforcement Learning
- ACTA ELECTRONICA SINICA Pages: 1-12(2026)
- 作者机构：
  
  1.北京科技大学计算机与通信工程学院，北京100083
  2.国家电网有限公司华北分部，北京，100053
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(62436004);National Key Research and Development Program of China(2022YFB3104903)
- DOI：10.12263/DZXB.20260219
  CLC： TN929.5;
- Received：11 March 2026，
  
  Accepted：16 May 2026，
  
  Online First：09 June 2026，
- 稿件说明：
移动端阅览
LI Jiaxin, WANG Jianping, LIU Zhibin, et al. Secure Sum Rate and Optimization in IRS-Assisted Dispersed Computing Network Based on Robust Deep Reinforcement Learning[J/OL]. ACTA ELECTRONICA SINICA, 2026, 1-12.
DOI：

LI Jiaxin, WANG Jianping, LIU Zhibin, et al. Secure Sum Rate and Optimization in IRS-Assisted Dispersed Computing Network Based on Robust Deep Reinforcement Learning[J/OL]. ACTA ELECTRONICA SINICA, 2026, 1-12. DOI： 10.12263/DZXB.20260219.

摘要

为解决恶劣无线通信环境下分散计算网络中高保密传输和高服务质量（Quality of Service，QoS）的协同需求，本文提出了一种智能反射面（Intelligent Reconfigurable Surface，IRS）辅助的分散计算网络保密通信与资源优化方案。首先，由于分散计算网络中的无人机（Unmanned Aerial Vehicle，UAV）节点受到自身能源的限制，本文研究了一种新颖的能量收集（Energy Harvesting，EH）方案，通过在几何空间上对IRS被动反射阵列进行功能划分，使部分反射单元用于信息反射，部分单元用于EH，从而实现信息传输与能量采集的协同进行。其次，构建了IRS辅助分散计算网络中的保密速率和最大化优化模型。该模型通过联合优化用户发射功率、IRS反射元件相移、EH约束以及通信QoS等多个耦合变量，以提升系统整体保密性能和资源利用效率。由于优化问题具有高度非凸性和变量强耦合特性，传统优化方法难以直接获得全局最优解。此外，考虑到分散计算网络中用户移动性强、无线信道动态变化快以及环境状态不确定等特点，本文设计了一种基于鲁棒深度强化学习（Deep Reinforcement Learning，DRL）的动态资源优化算法，以在动态分散计算网络环境中保证QoS。仿真结果表明：所提出的基于鲁棒DRL的IRS辅助分散计算网络方案性能不仅优于现有的其他基于学习的解决方案，还接近穷举法性能，最终验证了所提方案的有效性和优越性。

Abstract

To address the collaborative requirements of high-security transmission and high quality of service (QoS) in dispersed computing network under harsh wireless communication environments

this paper proposes a secure communication and resource optimization scheme for intelligent reconfigurable surface (IRS)-assisted dispersed computing network. Firstly

due to the energy limitations of unmanned aerial vehicle (UAV) nodes

this paper studies a novel energy harvesting (EH) scheme. By dividing the IRS passive reflection array in geometric space

some reflection elements are used for information reflection

and some elements are used for EH

so as to realize the cooperation of information transmission and EH. Secondly

the secure sum rate maximization optimization model in IRS-assisted dispersed computing network is formulated. The model jointly optimizes multiple coupling variables such as user transmission power

IRS reflection element phase shift

EH constraint and communication QoS

while improve the overall system security performance and resource utilization efficiency. Since the formulated optimization problem is highly non-convex and the variables are strongly coupled

traditional optimization methods are difficult to directly obtain the global optimal solution. Furthermore

considering the characteristics of dispersed computing network

such as high user mobility

rapidly varying wireless channels

and uncertain environmental states

a robust deep reinforcement learning (DRL)-based dynamic resource optimization algorithm is designed to guarantee QoS in dynamic dispersed computing environments. Simulation results show that the performance of the IRS-assisted dispersed computing network scheme based on robust DRL proposed in this paper not only outperforms existing learning-based solutions but also achieves performance close to that of the exhaustive search method

verifying the effectiveness and superiority of the proposed scheme.

关键词

Keywords

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