 |
|
|
|
|
|
|
|
|
|
|
|
|
| n |
Multicast
protocols perform poorly (packet delivery ratio
|
|
|
|
below
90%) as network topology changes more often
|
|
|
|
(nodes
move with higher speed and/or pause less)
|
|
|
| n |
Multicast
protocols also often do not scale well with
|
|
|
|
number
of multicast senders and/or number of multicast
|
|
|
|
receivers
|
|
|
| n |
Open
question how to build efficient multicast routing
|
|
|
|
protocols
in a MANET (tree vs. mesh, single tree vs.
|
|
|
|
source-based
tree, etc.)
|
|
|
| n |
Quite
a bit of work on efficient broadcast protocols, rather
|
|
|
than
simplistic flooding approach, as broadcasting control
|
|
|
messages
inherent part of many routing protocols
|
|
