A Comprehensive Performance Study of the Contention Access Period of the Slotted IEEE 802.15.4

The application based on Wireless Sensor Networks (WSN) needs the real-time transaction and the Quality of Service (QoS). Actuation, the IEEE 802.15.4 can access to the Media Access Control MAC and Physical PHY for low bit-rate, low-cost wireless sensor networks with QoS support. In this paper, we implement the allocation of the mechanism of the Guaranteed Time Slot GTS based on the analytical model of the beacon enabled IEEE 802.15.4 and analyse the performances of the network. We analyze the impact of the Beacon Order BO and the Superframe Order SO on the performance of the relation between the two parameters BO and SO based on commonly known metrics particularly delay, throughput and frame drop rate. In addition to that, the study investigates how protocol simulations are conducted on various simulation settings.