International Journal on Advanced Science, Engineering and Information Technology, Vol. 8 (2018) No. 3, pages: 956-962, DOI:10.18517/ijaseit.8.3.5483

A Study of Delay and Data Traffic of IEEE 802.15.4 ZigBee-Based WSN in a Smart Home

Naseem Kadhim Baqer, Ameen Mohammed-Taqy Al-Modaffer, Esam A. AlKaldy

Abstract

Wireless sensor networks (WSN) play a key role in modern applications, for instance, in smart homes as will be demonstrated in this paper. ZigBee technology provides better support when compared with WiFi, Bluetooth and Ultra Wide Band (UWB) standards regarding transmission range. This paper deals with the use of ZigBee WSN in a domestic application, namely smart home control. This model comprises a smart home with multiple rooms, designed in such a way that each room has sensors comprise for a varied environment. The sensor nodes will be presented by ZigBee end device which transmits the traffic to a master node in the form of a ZigBee coordinator. An OPNET modeler V14.5 was used in this simulation study. This paper presents seven models related to delay and data traffic received to improve WSN performance. Seven different WSN designs variations were utilized according to the number of rooms, sensors, coordinators, and routers. The outcomes demonstrate that one coordinator model causes more delay when compared with multiple coordinator models. Conversely, the presence of a router causes additional delay. This model should help electrical engineers when designing smart homes that utilize WSNs.

Keywords:

wireless sensor networks (WSN); ZigBee, OPNET; media access delay (MAD); data traffic received (DTR).

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