Date Added: Jun 2012
An ad hoc network consists of a set of autonomous mobile nodes that communicates via multi-hop wireless communication in an infrastructure-less environment. In such a network group communication takes place by implementing a multicasting technique. This multicasting technique is intended to provide energy and bandwidth efficiency with secure content delivery. The paper concentrates on identifying such an efficient multicasting technique. On the basis of comparison of multicasting protocols, Protocol for Unified Multicasting through Announcement (PUMA) has been chosen for initial implementation. PUMA does not rely on any unicast routing approach. It delivers data at a higher efficiency, while also provides a tight bound for control overhead in a wide range of network scenarios.