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Cougar (Mica Mote)

Cougar (Mica Mote). A platform for testing query processing techniques over ad-hoc sensor networks Three tier system: Running TinyOS, an embedded operating system from Berkeley, on the motes Server handling query interface with motes and database mapping GUI human usable interface.

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Cougar (Mica Mote)

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  1. Cougar (Mica Mote) • A platform for testing query processing techniques over ad-hoc sensor networks • Three tier system: • Running TinyOS, an embedded operating system from Berkeley, on the motes • Server handling query interface with motes and database mapping • GUI human usable interface

  2. Three Tier Architecture Thin Client GUI Wire/Wireless Communication Server (Java) Radio Communication TinyOS/NesC

  3. Mote Capabilities • Processing • Aggregation of network data • In network processing of data • In network, de-localized storage of data • Sensing • Light • Temp • Sound • Voltage • Hardware extendible

  4. Neighbor Table • Each node maintains a table containing information about neighboring nodes • Allows for geographical routing • “Dead” nodes are removed from neighbor table after timeout period

  5. Geographical Routing (GPRS) • Route messages from source to destination by location of intermediate nodes • Each node has a neighbor table containing node id and coordinates of neighboring nodes Destination Intermediates Source

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