Energy-aware objective function for routing protocol in internet of things

摘要

In recent years, the internet of things technology, commonly called “IoT” is one of the most important fields that has become the tremendous surge of interest from researchers. Internet of things visualizes an important future in which physical and digital entities can be connected, through suitable communication technologies, to allow development of new type of applications and services. However for IoT deployment, Energy efficiency is a critical concern due to the limited power capability of the sensing nodes. The objective function is used to construct a network and to determine how the mote selects and optimize path within a network based on specific metrics. Minimum rank with hysteresis objective function relies on quality link metric that is used to deal with the variation in link quality in the network. However, reliable links consume more energy than other nodes. This will drain the batteries of the overburdened nodes faster than other nodes which lead to reduce the overall network lifetimes as well as increase the probability of nodes failure. Therefore, to balance the power consumption rate among nodes, the node that has less power consumption value should be considered in routes selection. Thus, we have proposed a new objective function to balance power consumption among the nodes and prolong the node's battery while ensuring good packet reception ratio. The results have been compared with standard objective function. Simulation results verify that our proposed objective function achieves better energy balance and reduces the energy consumption while keeping good packet delivery ratio.