针对无线干扰下的协同推理,联合优化模型分割与资源分配以提升性能。
Joint Optimization of Model Partitioning and Resource Allocation for Anti-Jamming Collaborative Inference Systems
- 联合优化模型分割、传输功率与计算资源分配
- 在干扰下实现延迟与准确率的综合收益最大化
- 适合研究抗干扰边缘计算系统的学者参考
随着深度神经网络(DNN)推理对资源受限设备计算需求的增长,基于模型分割的设备-边缘协同推理成为一种有前景的范式。然而,中间特征数据的传输易受恶意干扰影响,显著降低整体推理性能。本文聚焦于存在恶意干扰器的抗干扰协同推理系统,将DNN模型分为两部分,分别由无线设备和边缘服务器执行。通过数据回归分析干扰与模型分割对推理准确率的影响,目标是在推理准确率与计算资源约束下,最大化系统延迟与准确率的综合收益(RDA)。针对混合整数非线性规划问题,提出一种基于交替优化的算法,将问题分解为三类子问题:分别采用KKT条件、凸优化方法和量子遗传算法求解。大量仿真表明,所提方案在RDA指标上优于基线方法。
原文摘要 · Abstract (English)
With the increasing computational demands of deep neural network (DNN) inference on resource-constrained devices, DNN partitioning-based device-edge collaborative inference has emerged as a promising paradigm. However, the transmission of intermediate feature data is vulnerable to malicious jamming, which significantly degrades the overall inference performance. To counter this threat, this letter focuses on an anti-jamming collaborative inference system in the presence of a malicious jammer. In this system, a DNN model is partitioned into two distinct segments, which are executed by wireless devices and edge servers, respectively. We first analyze the effects of jamming and DNN partitioning on inference accuracy via data regression. Based on this, our objective is to maximize the system's revenue of delay and accuracy (RDA) under inference accuracy and computing resource constraints by jointly optimizing computation resource allocation, devices' transmit power, and DNN partitioning. To address the mixed-integer nonlinear programming problem, we propose an efficient alternating optimization-based algorithm, which decomposes the problem into three subproblems that are solved via Karush-Kuhn-Tucker conditions, convex optimization methods, and a quantum genetic algorithm, respectively. Extensive simulations demonstrate that our proposed scheme outperforms baselines in terms of RDA.
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