An efficient hybrid topology construction in Zigbee sensor network

In this work, based on the characteristics of Zigbee protocol, Zigbee technology is used to model and simulate a wireless sensor network. Designing of hybrid topology by using three possible combination of Zigbee routing schemes considered in different scenarios to certify the reliability of this communication network. The parameters: throughput, delay, packet delivery ratio, network load are measured during these scenarios. The result concludes that the combination of mesh and star topologies is better to make an effective hybrid topology, then the other two combinations. These scenarios are performed taking into account the specific features and recommendations of the IEEE 802.15.4/Zigbee standard using OPNET Modeler 14.5. Simulation results quantify the impact of Zigbee network hybrid topologies on the performance factors.