Abstract

With the diversification of industrial IoT applications, there is a growing demand for mobility support in industrial wireless network environments such as smart grid and smart factory. However, the RPL (Routing Protocol for Low-power and Lossy Network), an IETF standard for LLN (Low-power and Lossy Network), which is mainly used in industrial applications, is designed based on static environments. In this paper, we discuss the problems caused by mobile nodes in RPL, and propose a mechanism to support mobility for downward traffic in RPL. Based on the simulation results, the proposed mechanism shows higher reliability and lower transmission delay compared with the original RPL.

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