The pervasive need to safely share and store information between devices calls for the replacement of centralized trust architectures with decentralized ones. DLTs are seen as the most promising enabler of decentralized trust, but they still lack technological maturity, and their successful adoption depends on the understanding of the fundamental design trade-offs and their reflection in the actual technical design. This work focuses on the challenges and potential solutions for an effective integration of DLTs in the context of the Internet of Things (IoT). We first introduce the landscape of IoT applications and discuss the limitations and opportunities offered by DLTs. Then we review the technical challenges encountered in the integration of resource-constrained devices with distributed trust networks. We describe the common traits of lightweight synchronization protocols, and propose a novel classification rooted in the IoT perspective. We identify the need for receiving ledger information at the endpoint devices, implying a two-way data exchange that contrasts with the conventional uplink-oriented communication technologies intended for IoT systems.

中文翻译：

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无线物联网设备与分布式账本技术集成的通信方面


设备之间安全共享和存储信息的普遍需求要求用去中心化信任架构取代集中式信任架构。 DLT 被视为去中心化信任最有前途的推动者，但它们仍然缺乏技术成熟度，其成功采用取决于对基本设计权衡的理解及其在实际技术设计中的反映。这项工作重点关注在物联网 (IoT) 背景下有效集成 DLT 的挑战和潜在解决方案。我们首先介绍物联网应用的前景，并讨论分布式账本技术提供的局限性和机遇。然后我们回顾了资源受限设备与分布式信任网络集成时遇到的技术挑战。我们描述了轻量级同步协议的共同特征，并提出了一种植根于物联网角度的新颖分类。我们确定了在端点设备上接收账本信息的需求，这意味着双向数据交换，这与用于物联网系统的传统的面向上行链路的通信技术形成对比。