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Dynamic RPL for multi-hop routing in IoT applications

机译：用于物联网应用中多跳路由的动态RPL

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The Routing Protocol for Low Power and Lossy Networks (RPL) has become the standard routing protocol for the Internet of Things (IoT). This paper investigates the use of RPL in dynamic networks and presents an enhanced RPL for different applications with dynamic mobility and diverse network requirements. This implementation of RPL is designed with a new dynamic Objective-Function (D-OF) to improve the Packet Delivery Ratio (PDR), end-to-end delay and energy consumption while maintaining low packet overhead and loop-avoidance. We propose a controlled reverse-trickle timer based on received signal strength identification (RSSI) readings to maintain high responsiveness with minimum overhead and consult the objective function when a movement or an inconsistency is detected to help nodes make an informed decision. Simulations are done using Cooja with random waypoint mobility scenario for healthcare applications considering multi-hop routing. The results show that the proposed dynamic RPL (D-RPL) adapts to the nodes mobility and has a higher PDR, slightly lower end-to-end delay and reasonable energy consumption compared to related existing protocols.
机译：低功耗有损网络（RPL）的路由协议已成为物联网（IoT）的标准路由协议。本文研究了RPL在动态网络中的使用，并针对具有动态移动性和多样化网络需求的不同应用提出了一种增强的RPL。 RPL的此实现采用新的动态目标功能（D-OF）设计，以提高数据包传输率（PDR），端到端延迟和能耗，同时保持较低的数据包开销和避免环路的能力。我们提出了一种基于接收信号强度识别（RSSI）读数的可控反向滴答计时器，以最小的开销维持高响应度，并在检测到运动或不一致性时咨询目标函数，以帮助节点做出明智的决定。针对具有多跳路由选择的医疗应用，使用Cooja结合随机航路点移动性场景进行了仿真。结果表明，与相关的现有协议相比，所提出的动态RPL（D-RPL）适应节点的移动性，具有更高的PDR，更低的端到端延迟和合理的能耗。

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