This dissertation presents analysis of performance advantages of Wireless Sensor Networks over the traditional wireless networks by virtue of design and topological advantages. Given that wireless sensor networks comprise of independent intelligent low power nodes that possess at least one dedicated channel each, the overall throughput of the network is much higher than the infrastructure wireless networks because the latter has all the channels consolidated in the base station that in turn may not be able to dedicate a channel per node on the network. Hence, the more nodes that are on the Network, the less is the throughput. Given this advantage, the WSNs possess much smaller delays compared to the traditional infrastructure wireless networks. The delays in WSNs are significantly lesser than delays in Infrastructure wireless networks. The researcher has carried out simulation based experimentation using OPNET IT GURU and proved this fact experimentally.
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Figure 1
The physical layout of wireless sensor node designed by IEEE (Source: Culler and Estrin et al. 2004)
Figure 2
The four network lifetime considerations in Wireless Sensor Networks (Source: Chen. 2005)
Figure 3
WLAN Characteristics of the basic WLAN Workstation that has been selected by the researcher to represent wireless sensor in the Wireless Sensor Network
Figure 4
Wireless Access Point Configuration in the model Babatunde1
Figure 5
First step of creating the first Model - the name is selected as “Babatunde” and the scenario name as “WSN”
Figure 6
Creation of an Empty Scenario such that nodes and links can be configured from the Object Palette.
Figure 7
Network Scale is selected as “Office” to represent that the range of the network devices is short.
Figure 8
The Object Palette can be configured using this screen - the nodes and links can be added/deleted using this screen.
Figure 9
The Object Palette is displayed after configuring in the previous screen (the node used for representing the wireless sensors is shown highlighted in the figure.
Figure 10
The Application, Profile and Task configuration models are shown in this screen.
Figure 11
The final network model of Wireless Sensor Network named as ...