1. WIRELESS COMMUNICATION NETWORKS Modeling and Simulation

2. Scale A common Issue  How accurate do you need?  What are you trying to understand?  What are your assumptions?

3. 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

4. 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!

5. 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?

6. 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?

7. 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

8. Questions? Thanks!