ISSN : 1796-2021
Volume : 2    Issue : 4    Date : June 2007

Performance Evaluation of IEEE 802.15.4: Experimental and Simulation Results
Khaled Shuaib, Maryam Alnuaimi, Mohamed Boulmalf, Imad Jawhar, Farag Sallabi, and
Abderrahmane Lakas
Page(s): 29-37
Full Text:
PDF (490 KB)

Wireless Local Area Networking standard (Wi-Fi) and the WPAN standard (Bluetooth and Zigbee)
products utilize the same unlicensed 2.4 GHz ISM band. Co-existence between such wireless
technologies within the same frequency spectrum is crucial to ensure that each wireless technology
maintains and provides its desired performance requirements. This paper provides a brief
description of the newly introduced Zigbee standards including the Physical (PHY) and media
access control (MAC) layer. It focuses on developing MatLab/Simulink models for the Zigbee
protocol and the performance evaluation of these models. Several simulations were run and the
results were analyzed for the different scenarios. The results showed how the relationship between
the signal Bit Error Rate (BER) and Signal to Noise Ratio (SNR) was affected when varying the data
rate and power. Furthermore, this paper investigated the co-existence of WLAN (IEEE 802.11g) with
Zigbee (IEEE 802.15.4 by quantifying potential interferences and examining the impact on the
throughput performance of IEEE 802.11g and Zigbee devices when co-existing within a particular
environment. The effect of Zigbee on IEEE 802.11g was compared with the effect of Bluetooth under
the same operating conditions.

Index Terms
WLAN, Bluetooth, Zigbee, Performance Analysis, IEEE 802.15.4.