Performance Evaluation of multiple RPL instances for IoT applications

To meet the development of Internet of Things (IoT), IETF has proposed IPv6 standards working under low-power and low-cost constraints. In this work, we provide insights and studies on an implementation of the RPL (routing protocol for low power and lossy network) under the use of multiple RPL instances. We use the Contiki operating system and COOJA simulator to evaluate behavior of such. Different from previous studies, our work is the first effort investigating the use of two distinctive objective functions under multiple RPL instances for differentiating QoS at network layer in WSNs. The metrics evaluated include network convergence, latency and packet delivery rate. The study can also serves as a basis for future enhancement on the use of multiple RPL instances for multiple IoT applications.