Thomas Kunz
Systems and Computer Engineering
5
Literature Survey: Known Results
nMulticast protocols perform poorly (packet delivery
ratio below 90%) as network
topology changes more often (nodes
move with higher speed and/or pause less)
nMulticast protocols also
often do not scale well with number
of multicast senders and/or number of multicast receivers
nOpen question how to build efficient multicast routing protocols in a MANET (tree vs. mesh, single tree vs. source-based tree, etc.)
nQuite a bit of work on
efficient broadcast protocols, rather than simplistic flooding approach, as broadcasting
control messages inherent part
of many routing protocols