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Wireless Sensor Network

Wireless Sensor Network. References. EE400 Term Project Prepared by, Khaled Al-Omar 211805 Fahad Al-Jabarti 241980. [1] Yingshu Li, My T.Thai, Weili Wu, “Wireless Sensor Networks and Applications”, 2008.

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Wireless Sensor Network

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  1. Wireless Sensor Network References EE400 Term Project Prepared by, Khaled Al-Omar 211805 Fahad Al-Jabarti 241980 [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

  2. Motivation Monitor some phenomena in a far away location ? Monitor some event in a highly dangerous location ?

  3. Solution Wireless Sensor Network (WSN) Source [3]

  4. Outline 1 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

  5. Sensor Node Sensor nodes components: • Sensing Unit • CPU • Transceiver • Battery Low-Power & Low-Cost Source [3]

  6. Communication Architectures There are two types of communications architectures depending on application: Layered Clustered Source [5]

  7. 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]

  8. Data Link Layer Medium Access Control (MAC) Protocols: - Sensor-MAC (SMAC): - periodic listen & sleep - collision avoidance - Timeout-MAC (TMAC): - enhance the energy savings in SMAC Source [1]

  9. 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]

  10. Applications Many Fields Healthcare Applications Military Purposes Environmental Monitoring

  11. Big Picture of WSN Thank you Source [4]

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