The main objective of this paper is to propose a new multicast routing
scheme to adopt with the dynamic topology of MANET at the same time to
provide high multicast efficiency and packet delivery ratio. The proposed
scheme is named as Link Aware on Demand Multicast Routing (LAOMR)
scheme. In this scheme, initially the source node forms the multicast group
by announcing itself as a multicast source agent to all the nodes in the
network. The nodes which are eager to join in the group are sending the join
request to the source node. Then the source node finds the route to reach the
multicast group through some intermediate nodes. The intermediate nodes
are not interested to hear the multicast message but they are act as the routers
to forward the packets to the multicast group. The intermediate nodes are
chosen based on the link residual life (LRL) of the nodes. The node which
has the highest LRL and closer to the multicast group is selected as the
forwarder node. So, the proposed scheme reduces the link failure in the
multicast route and increases the multicast efficiency, throughput. The
performance is evaluated by using the simulation results obtained from NS2
Simulator. 

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