Simulative Investigation of Zigbee Network Coordinator Failure with Different QoS?

ZigBee (IEEE 802.15.4-2006 standard) is a category in the IEEE 802 family, is responsible for ZigBee standard which uses the transported services of the 802.15.4 network specification therefore ZigBee is a specification for a suite of high level communication protocols using small, low-power digital radios based on an IEEE 802 standard for personal area networks. In this paper, we perform extensive personal area network evaluation, to study the Effect of coordinators failures on ZigBee Star, Tree network, using OPNET Modeler. The performance is analyzed in terms of control traffic received and sent, throughput, data dropped, network load PAN1 and PAN2