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Wireless Sensor Networks: Technology and Applications Overview

Explore the components, communication architectures, and protocols of Wireless Sensor Networks (WSNs) for monitoring remote or hazardous areas. Learn about sensor nodes, communication technologies, MAC protocols, routing algorithms, and diverse applications in healthcare, military, and environmental monitoring. Discover the power of WSNs in various fields, offering insights into the world of wireless sensor technology.

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Wireless Sensor Networks: Technology and Applications Overview

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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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