Thomas Kunz
Systems and
Computer Engineering
2
Motivation
lPacket
loss in MANET due to unpredictable topology:
uRouting protocols (both “pro-active” and “on-demand”
protocols) keep using a route
until a link breaks
XResult:
]Rebuild
the route (takes time)
]Packets
are dropped
uCached
routes become stale (i.e., invalid)
XResult:
packets are lost when using stale routes
lBasic idea:
can we predict link breakage and utilize this information to reduce packet losses