Source Authentication for Multicast in Mobile Ad hoc Networks this thesis may be helpful for ns2 users

Simplified Multicast Forwarding (SMF) Engine provide an implementation of experimental techniques for robust, efficient distribution of broadcast or multicast packets in dynamic, wireless networks such as Mobile Ad-hoc Networks (MANETs)

this is on demand multicast protocol

Multicast protocols in mobile ad hoc networks: comparison of protocols ODMRP and MAODV (Persian Article)