Future Work
	l Pro-active route maintenance in AODV (ongoing): AODV supports multicasting (tree-based), preventing packet drop even more crucial in this case l Non-constant transmit power levels l Monitor multicast packets: increase prediction accuracy, deal with non-constant transmit power l “Soft handoff”: use old route while source node finds new route l Impact on TCP (evidence so far is mixed) l Other ways to predict/monitor/deal with link availability u NS2 has simplistic radio propagation model