Thomas Kunz
Systems and Computer Engineering
8
The Problem
of High Packet Delivery Ratios
nResults published in literature:
ØMulticast protocols perform poorly (packet delivery ratio
below 90%) as network topology changes more often (nodes move with
higher speed and/or pause less)
ØMulticast protocols also often do not scale well with number
of multicast senders and/or number of multicast receivers
ØBroadcast protocols can be beneficial under high mobility
and/or large group sizes
ØQuite a bit of work on efficient broadcast protocols, rather
than simplistic flooding approach, as broadcasting control
messages inherent part of many routing protocols