Scheduling in Bluetooth Scatternet Midterm Report

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Scheduling in Bluetooth Scatternet Midterm Report

• Alon Mahl
• Guy Bale
• Instructor
• Gil Zussman

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What is Bluetooth?

• Bluetooth is a low-cost, low-power wireless
  networking technology designed to be used in a
  persons operating space, i.e. the space around a
  person that typicallyextends up to 10 meters in
  all directions.

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Main characteristics

• Slotted channel one slote 625us
• Frquency spectrum - 79 channels
• 1 master, up to 7 slaves
• Polling policy
• packet size 1,3 or 5 slots

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Master and slaves form a Piconet

• Slave

• Slave

• Master

• Slave

• Slave

• Slave

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and connected piconets form a Scatternet
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Project goals

• Expand an existing OPNET model for simulating a
  Bluetooth scatternet (piconets network), in
  various topologies.
• Examine and compare statistics for various
  scheduling algorithms in the scatternet and find
  the most efficient one.
• Optional- suggest a new algorithm to compete with
  the existing ones.

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Current Status

• Got familiar with the OPNET simulator, bluetooth
  specification
• Learning the existing code for basic Scatternet
  model.(R.K,L.H)
• various scheduling algorithms for simulation were
  chosen
• A basic Scatternet topology was designed

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Future schedule

• This semester
• Expanding the basic topology to include the
  Bridge-Master component

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Next semester

• Impelent the various scheduling algorithms in the
  OPNET simulator
• Define the comparing parameters to be evaluated
  during simulation
• Run simulations and analize results