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http://dx.doi.org/10.9723/jksiis.2022.27.6.041

EC-RPL to Enhance Node Connectivity in Low-Power and Lossy Networks  

Jeadam, Jung (대구대학교 ICT융합학부)
Seokwon, Hong (대구대학교 AI학부)
Youngsoo, Kim (전주대학교 인공지능학과)
Seong-eun, Yoo (대구대학교 AI학부)
Publication Information
Journal of Korea Society of Industrial Information Systems / v.27, no.6, 2022 , pp. 41-49 More about this Journal
Abstract
The Internet Engineering Task Force (IETF) has standardized RPL (IPv6 Routing Protocol for Low-power Lossy Network) as a routing protocol for Low Power and Lossy Networks (LLNs), a low power loss network environment. RPL creates a route through an Objective Function (OF) suitable for the service required by LLNs and builds a Destination Oriented Directed Acyclic Graph (DODAG). Existing studies check the residual energy of each node and select a parent with the highest residual energy to build a DODAG, but the energy exhaustion of the parent can not avoid the network disconnection of the children nodes. Therefore, this paper proposes EC-RPL (Enhanced Connectivity-RPL), in which ta node leaves DODAG in advance when the remaining energy of the node falls below the specified energy threshold. The proposed protocol is implemented in Contiki, an open-source IoT operating system, and its performance is evaluated in Cooja simulator, and the number of control messages is compared using Foren6. Experimental results show that EC-RPL has 6.9% lower latency and 5.8% fewer control messages than the existing RPL, and the packet delivery rate is 1.7% higher.
Keywords
EC-RPL; RPL; Connectivity; IoT; LLNs;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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