Apple "cheats" on that regard, getting your wifi back up after sleep.
http://cafbit.com/entry/rapid_dhcp_or_how_do
http://news.ycombinator.com/item?id=2755461 <-- good discussion
Previous comments are interesting: https://news.ycombinator.com/item?id=2755461
Apple "cheats" on that regard, getting your wifi back up after sleep.
http://cafbit.com/entry/rapid_dhcp_or_how_do
http://news.ycombinator.com/item?id=2755461 <-- good discussion