Abstract

Internet of things (IoT) are getting more deployed in different environment where they provide many benefits for industrial and home automation, smart buildings, medical and environmental monitoring. Sensors are low cost devices with limited storage, computation, and power. Finding optimal based routing solutions is a challenging task in IoT because of constraint over nodes and lossy links. IETF standardized the IPv6 based RPL routing protocol for Low power and Lossy Networks (LLNs) in 2012. It selects the ideal routes from a source to a destination node based on certain metrics injected into the Objective Function (OF). Because RPL uses the DODAG topology, it is easy to lead to the rapid depletion of node power at the upper level of the routing topology. Reducing the network energy consumption to prolong the life cycle of network is very important for IoT. In this paper, we investigate the energy consumption and topology of RPL routing protocol and put up some proposals for a plethora of IoT applications.

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