AN ENHANCED RELIABLE AD HOC MULTICASTING PROTOCOL

A Mobile Ad Hoc Networks (MANET) is characterized by a lack of infrastructure, and by a random and quickly changing network topology; thus the need for a robust dynamic routing protocol that can accommodate such an environments is very important. Consequently, many multicast routing algorithms have been deployed to achieve a high data delivery ratio with very limited control overhead. This paper presents an enhanced reliable Ad Hoc multicasting protocol, E-PUMA, of PUMA (protocol for unified multicasting through announcements) that satisfy efficiency and robustness and is effective in relative applications. The proposed protocol adds two parameters for the selection of the best route, the first parameter is the route load to fair the distribution of the data packets among nodes, and the second parameter is the route stability that determines which route remains connected for the longest duration of time. After words a comparative study has been made between the proposed protocol and the conventional protocol.