Modeling and Simulation WIRELESS COMMUNICATION NETWORKS Scale A

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 Connection info is important �What might be left out Cell hardware? Routing algorithms? Voice only (no data)? MAC protocol transients

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!

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 �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 �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 NS 3 Abundance of general DES

Questions? �Thanks!