3 Mechanisms to Reduce Redundancy, Contention, and
Collision
One approach to alleviate the broadcast storm problem is to
inhibit some hosts from rebroadcasting to reduce the redundancy,
and thus contention and collision. In the following,
we present five schemes to do so. These schemes differ in
how a mobile host estimates redundancy and how it accumulates
knowledge to assist its decision. Except the last
scheme, which relies on some local connectivity information,
all schemes operate in a fully distributed manner.