Energy-efficient scheduling in IoT using Wi-Fi and ZigBee cross-technology

In today’s Internet of Things (IoT) era, a wide range of wireless devices communicates together through wireless communication. Wi-Fi has been used for a large number of data transmissions due to its high range, high performance and universal IP accessibility. Wi-Fi is generally power consuming, and it may put a lot of stress on energy-constrained IoT devices and gateways. Conversely, ZigBee has now become a broadly used transmission technique in IoT because of its minimal price, low power consumption and ease of implementation. Many power saving management schemes have been designed to increase energy efficiency, but they do not perform well for all power constraint services. To deal with such situations, we have proposed an Energy-Efficient Scheduling (EES) using Wi-Fi and ZigBee and utilized the high transmission rate of Wi-Fi and low power consumption nature of ZigBee. While working on these two technologies of the same frequency band (2.4 GHz), we have resolved the interference problem using Interference Avoidance (IA) algorithm. Inet framework of Omnet++ simulator is used for the simulation. The implementation result shows a significant reduction in energy consumption on the device and gateway. In the presence of Wi-Fi, ZigBee functions better and the outcomes indicate better throughput while maintaining the energy consumption and interference level.