Comparing AMRIS and ODMRP in Ad-Hoc Networks by QualNet

Multicasting is the transmission of packets to a group of zero or more hosts identified by a single destination address. There are a considerable number of advantages in multicasting. It can significantly support various applications with some collaboration, typical for many ad-hoc applications currently envisioned. Within the wired network, well-established routing protocols exist to offer an efficient multicasting service. As nodes become increasingly mobile, these protocols need to evolve to similarly provide an efficient service in the new environment. This paper is mainly focusing on the performance of AMRIS and ODMRP as two proposed multicast protocol for ad-hoc network AMRIS builds and maintains a multicast tree based on hard state information but ODMRP maintains a mesh based on soft state. Our results show that in many scenarios ODMRP achieves a higher packet delivery ratio, but results in much higher overheads.