Please use this identifier to cite or link to this item: http://repository.aaup.edu/jspui/handle/123456789/2723
Title: The Impact of Network Topology on Performance of Wireless Sensor Networks based on Zigbee Protocol رسالة ماجستير
Authors: Nathif, Wasim Wael$AAUP$Palestinian
Keywords: networks,wireless sensor networks,zigbee hardware
Issue Date: 2019
Publisher: AAUP
Abstract: Zigbee wireless sensor networks, built on the bases of IEEE 802.15.4 standard, is gaining popularity in latest years due to its interesting features of being low in power consumption, sustaining long battery life and due to its straightforwardness in security management. Academic and industrial circles are showing increased interest in employing Zigbee technology as it can be used in wide range of present and future applications. In this thesis, the intention is to study and analyse the impact of network topologies on performance of wireless sensor networks built based on the Zigbee protocol. In addition, the effect of different WSN elements have been studied and analysed such as the effect of increasing number of Zigbee end devices (ZEDs), the effect of the number of Zigbee coordinators (ZCs) and Zigbee routers (ZRs). Moreover, the effect of nodes mobility has been also studied and analysed. In the thesis we used the OPNET powerful simulator to build the needed network designs, which represent a real-world scenario. We then investigated the performance metrics of these networks by calculating the end-to-end delay, throughput, MAC load packet and packet delivery ratio as a function of network topology under various layouts and node conditions based on specifications recommended by the IEEE 802.15.4/ZigBee standards. The overall conclusion out of this work indicates that considering the metrics of end-to-end delay, throughput, MAC load, and packet delivery ratio, adding one or more coordinators to the network will work to significantly improve the overall performance of the WSN and boost the quality of services of these increasingly deployed networks. V Though efforts to design, simulate and analyse the different WSN scenarios have been succeeded and generated results that might have some practical implications to the WSN industries, generalizing the results and implementing their consequences will still require testing them on a larger scale scenario in a more realistic condition
Description: Master`s degree in Computer Sciences
URI: http://repository.aaup.edu/jspui/handle/123456789/2723
Appears in Collections:Master Theses and Ph.D. Dissertations

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