6610-l20- - Wireless Sensor Networks Wireless Sensor...

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Wireless Sensor Networks
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2 Wireless Sensor Networks Used for sensing! Large number of sensor nodes densely deployed either inside the phenomenon of interest or close to it Random deployment feasible due to low cost nature of sensors Sensor: sensing, processing, communication
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3 WSN Organization Sensors sense, process and give information to sink Sink propagates information back to the user/decision maker Backbone User/ Decision maker Sink Sensing Field
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4 WSN Applications Sensors – temperature, humidity, motion, light, pressure, soil make-up, noise levels, stress, etc. Military – surveillance, targeting, damage assessment, chemical/biological agent detection Environment – forest fires, biocomplexity mapping, flood detection, precision agriculture Health – telemonitoring, tracking, drug administration Home – automation, smart environment
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5 WSN vs Ad-hoc Networks Larger number of nodes Density of nodes Failure proneness Communication patterns Limited Node capabilities Lack of Global Identifiers
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6 Key Factors in WSNs Fault tolerance (survivability) Scalability Production costs Hardware constraints Topology management
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WSN Protocol Stack Layers Application Transport Network
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This note was uploaded on 12/14/2009 for the course ECE 6610 taught by Professor Staff during the Fall '08 term at Georgia Tech.

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6610-l20- - Wireless Sensor Networks Wireless Sensor...

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