提出无需硬件信息的动态调度策略,应对无电池物联网的未知负载挑战。
Managing Task Execution for Unknown Workloads in Batteryless IoT: A Hardware-Agnostic Evaluation

- 用强化学习和实时预测方法实现无硬件依赖的动态调度
- 轻量级预测法接近理想吞吐,强化学习可调生存与执行平衡
- 小电容设备需复杂策略,大电容可用简单静态策略
近年来,物联网正向无电池、能量收集架构演进。维持系统可靠运行需智能管理高度波动的能量存储。随着边缘应用复杂度提升,传统能量感知调度器因依赖固定执行阈值或预先测量的硬件特定任务特征,在面对不可预测负载时表现不佳。为此,本文提出两种新型、硬件无关的动态调度策略:一种无模型强化学习(RL)代理,另一种实时近似预测(AP)方法。两者均将应用视为“黑箱”,无需提前能量信息。我们在基于真实太阳能数据和动态LoRa传输特征的物理精准仿真框架中,对这些方法与自适应任务速率(AsTAR)及优化静态阈值进行对比评估。分析揭示各方法的差异化权衡:AP方法实现轻量级近最优任务吞吐;RL代理提供可调的生存-执行平衡;AsTAR在长能量间隙下表现最佳。最后证明,尽管先进策略对小型电容设备至关重要,但具备较大储能缓冲的设备可高效采用更简单、计算成本更低的静态策略。
原文摘要 · Abstract (English)
In recent years, the Internet of Things (IoT) paradigm has been shifting toward batteryless, energy-harvesting architectures. Sustaining reliable operation in these systems requires intelligent management of highly volatile stored energy. As edge applications grow in complexity, traditional energy-aware schedulers struggle with unpredictable workloads due to their reliance on static execution thresholds or pre-measured, hardware-specific task profiles. To overcome this, we propose two novel, hardware-agnostic dynamic scheduling strategies treating applications as a "black box," requiring no prior energy information: a model-free Reinforcement Learning (RL) agent and an on-the-fly Approximated Prediction (AP) method. We evaluate these methods against an adaptive task rate approach (AsTAR) and optimized static thresholds using a custom-built, physically accurate simulation framework driven by real-world solar data and dynamic LoRa transmission profiles. Rather than claiming universal superiority, our analysis exposes the distinct operational trade-offs of each method: the AP approach delivers lightweight, near-oracle task throughput; the RL agent provides tunable survival-execution balancing; and AsTAR excels at execution pacing across long energy gaps. Finally, we demonstrate that while these advanced strategies provide critical resilience for severely constrained systems with small capacitors, devices with larger energy buffers can efficiently rely on simpler, less computationally expensive static policies.
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