1 wireless sensor network ee400 term project prepared by, khaled al-omar211805 fahad...
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Wireless Sensor NetworkEE400 Term Project
Prepared by,Khaled Al-Omar 211805Fahad Al-Jabarti 241980
References
[1] Yingshu Li, My T.Thai, Weili Wu, “Wireless Sensor Networks and Applications”, 2008.
[2] Kazem S., Daniel M., Taieb Z., “Wireless Sensor Networks: Technology, Protocols and Applications”, 2007.
[3] Carlos Pomalaza-Ráez , “ Wireless Sensor Networks”, University of Oulu, Finland, 2004.
[4] Mikio Takaziwa, “Survey: Wireless Sensor Network (WS)”, Senior Capstone Seminar, 2008.[5] Katia Obraczka, “Toturial: WSN”, University of California, May 2006
[6] Matthias Handy, “Routing in Wireless Sensor Network”, University of Rostock
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Motivation
Monitor some phenomena in a far away location ?
Monitor some event in a highly dangerous location ?
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Wireless Sensor Network (WSN)
Solution
Source [3]
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Outline1 Sensor Nodes
- Components
2 Communication Architecture
- Layered or Clustered
3 Physical Layer
- Different Wireless Technologies
4 MAC Layer
- SMAC and TMAC
5 Network Layer
- Hierarchical Vs. Location-Based
6 Applications
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Sensor Node
Sensor nodes components:
1) Sensing Unit
2) CPU
3) Transceiver
4) Battery
Low-Power & Low-Cost
Source [3]
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Communication Architectures
There are two types of communications architectures depending on application:
Layered Clustered
Source [5]
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Physical Layer• Use available Wireless Protocols:
• Radio Frequency : ISM Band 433MHz to 2.4GHz• Modulation : Phase-Shift Keying
• BPSK or MPSK
• Data Rate : 0.25 Mbps to 54 Mbps
Source [2]
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Data Link LayerMedium Access Control (MAC) Protocols:
- Sensor-MAC (SMAC):
- periodic listen & sleep
- collision avoidance
- Timeout-MAC (TMAC):
- enhance the energy savings in SMAC
Source [1]
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Network Layer
Two Types of Routing Algorithms:
1) Hirarchical Routing Protocols:Low-Energy Adaptive Clustering Hierarchy (LEACH)
2) Location-Based Routing Protocols:Geographical Adaptive Fidelity (GAF)
Source [2]
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Applications
Many Fields
Healthcare Applications Military Purposes Environmental Monitoring
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Big Picture of WSN
Thank you
Source [4]