Performance Analysis of Wireless Network Based on IEEE 802.15.4 in Smart Home Environment

Smart Home works at the customer domain of the Smart Grid. It aims to provide an interactive environment in which direct communication with end-users can be easily done. Home Area Network adopts Low-Rate Wireless Personal Area Networks (LR-WPANs) to realize the automatic control of lighting system, safety system, smart appliances, smart devices, etc. This paper discusses the architecture of Home Automation, constructs the OPNET simulation model of wireless networks based on IEEE802.15.4 standard, analyzes the synchronous mechanism of the slotted CSMA/CA, the number of nodes and network load's impact on the energy consumption and end-to-end delay, and evaluates the performance of the Guaranteed Time Slots mechanism for the low-latency applications.