The Time-Slotted Channel Hopping (TSCH) mode of IEEE802.15.4 standard provides ultra high end-to-end reliability and low-power consumption for application in field of Industrial Internet of Things (IIoT). With the evolving of Industrial 4.0, dynamic and bursty tasks with varied Quality of Service (QoS); effective management and utilization of growing number of mobile equipments become two major challenges for network solutions. The existing TSCH-based networks lack of a system framework design to handle these challenges. In this paper, we propose a novel, service-oriented, and hierarchical IoT network architecture named Mobile Node as a Service (Monaas). Monaas aims to systematically manage and schedule mobile nodes as on-demand, elastic resources through a new architectural design and protocol mechanisms. Its core features include a hierarchical architecture to balance global coordination with local autonomy, task-driven scheduling for proactive resource allocation, and an on-demand mobile resource integration mechanism. The feasibility and potential of the Monaas link layer mechanisms are validated through implementation and performance evaluation on an nRF52840 hardware testbed, demonstrating its potential advantages in specific scenarios. On a physical nRF52840 testbed, Monaas consistently achieved a Task Completion Rate (TCR) above 98% for high-priority tasks under bursty traffic and link degradation, whereas all representative baselines (Static TSCH, 6TiSCH Minimal, OST, FTS-SDN) remained below 40%.Moreover, its on-demand mobile resource integration activated services in 1.2 s, at least 65% faster than SDN (3.5 s) and OST/6TiSCH (> 5.8 s).

翻译：IEEE802.15.4标准的时隙信道跳变（TSCH）模式为工业物联网（IIoT）领域的应用提供了极高的端到端可靠性和低功耗特性。随着工业4.0的发展，具有多样化服务质量（QoS）要求的动态突发性任务，以及对日益增多的移动设备进行有效管理与利用，成为网络解决方案面临的两大主要挑战。现有的基于TSCH的网络缺乏应对这些挑战的系统性框架设计。本文提出了一种新颖的、面向服务的、分层式的物联网网络架构，命名为移动节点即服务（Monaas）。Monaas旨在通过新的架构设计和协议机制，将移动节点作为按需、弹性的资源进行系统性管理和调度。其核心特性包括：平衡全局协调与局部自主性的分层架构、用于主动资源分配的任务驱动调度机制，以及按需移动资源集成机制。通过在nRF52840硬件测试平台上进行实现和性能评估，验证了Monaas链路层机制的可行性和潜力，展示了其在特定场景下的潜在优势。在物理nRF52840测试平台上，面对突发流量和链路质量下降的情况，Monaas对高优先级任务的任务完成率（TCR）始终保持在98%以上，而所有代表性基线方案（静态TSCH、6TiSCH最小配置、OST、FTS-SDN）均低于40%。此外，其按需移动资源集成机制在1.2秒内即可激活服务，比SDN（3.5秒）和OST/6TiSCH（> 5.8秒）至少快65%。