Abstract:
Mobile Ad hoc NETworks (MANETs) are collection
of mobile nodes communicate in a multi-hop manner without
relaying on any infrastructure or central administration.
Multimedia and group-oriented applications over MANETs
gain high popularity, which makes providing Quality of
Services (QoS) a key requirement. This work proposed a new
efficient approach which aims to find paths between the source
and all the multicast group members using paths that meet the
bandwidth and delay requirements. Unlike some of multicast
routing protocols, the proposed approach has limited
maintaining the network topology to certain nodes to reduce
communication overhead and provide scalability. The
proposed protocol partitioned the network into equal size
hexagonal cells and a leader and backup leader are elected
inside each cell. The location information provided by GPS
receivers are used at route discovery and route maintenance.
This protocol allows multicast group members to join/leave the
held session dynamically. The proposed protocol is scalable for
large area networks with large multicast members. Also, it
achieves a significant reduction in processing overhead than
non hierarchical algorithms.
