Mobility: Issues and Ideas
n As mobile devices roam, the proxy (or proxies) might have
to migrate as well:
§ schemes are only efficient if proxy is on direct path between
mobile and correspondent host
§ however, not every move requires a proxy migration
n When to migrate: performance question
§ e.g., when are advantages of migration higher than costs?
n How to migrate: infrastructure question
n Consequences of migration: mobility models, simulations
§ e.g., what happens if all cellular subscribers move into same cell
(the one that covers the big shopping mall)