Performance of multicast groups moving towards the same direction

MANETs (Mobile Ad-hoc Networks) are self organizing networks without the need for a pre-existing infrastructure. These characteristics make them suitable for situations as rescue procedures, education, and military. When nodes need one-to-many or many-to-many communication then multicasting is employed. Many experiments showed that ODMRP protocol is very efficiency.. In this article we partition the nodes into sub-groups and observe how ODMRP react with respect to antenna range, area, speed and directionality. We partition the nodes to 1 or 2 or 3 or 4 or 5 subgroups. Then we repeat all the above experiments having the leaders of any sub-group to communicate with each other. The main aim of this paper is to investigate how directionality and group-leaders communication affect the ODMRP, and what is the impact of the antenna range, area and speed. The performance measures to be evaluated are the PDR (Packet Delivery Ratio) and the Latency.