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Modeling and Simulation. Wireless communication Networks. Scale. A common Issue How accurate do you need? What are you trying to understand? What are your assumptions?. Scale. Examples Experiments to understand connection dynamics in a cell phone network Mobility is important

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Modeling and Simulation


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modeling and simulation

Modeling and Simulation

Wireless communication Networks

scale
Scale
  • A common Issue
    • How accurate do you need?
    • What are you trying to understand?
    • What are your assumptions?
scale1
Scale
  • Examples
    • Experiments to understand connection dynamics in a cell phone network
    • Mobility is important
    • Connection info is important
  • What might be left out
    • Cell hardware?
    • Routing algorithms?
    • Voice only (no data)?
    • MAC protocol transients
scale2
Scale
  • Examples
    • Experiments to discover effect of transience in BGP in high-tier internet traffic
    • DES may not even be sufficient!
    • Need fine-granularity
    • Still may not need MAC protocols!
scale3
Scale
  • Mobile Ad Hoc Wireless
    • How many nodes?
    • How fast do they move?
    • How complex of a wireless model?
      • Simple SNR, Directed Antenae, co-channel interference…
    • Battery life?
by the way
By the way
  • Discrete Event Simulation!
    • A simple concept
    • Agents and Events Very Intuitive
    • Very OO friendly, Hooray!
  • What package to use?
    • Look at scale issues!
    • How much do you like to program?
further resources
Further Resources
  • Read!
  • Best way by far to understand the state of the art is to read papers
  • Keep a close eye on the models they use…
    • Lots of work in MAC and wireless channel-space sharing
    • NS3
    • Abundance of general DES
questions
Questions?

Thanks!