Multicasting in Ad-Hoc Networks: Comparing MAODV and ODMRP

Multicasting can efficiently support a variety of applications that are characterized by a close degree of 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 discusses the performance of two proposed multicast protocols for ad-hoc networks: MAODV and ODMRP. MAODV builds and maintains a multicast tree based on hard state information, ODMRP maintains a mesh based on softstate. Our results show that in many scenarios ODMRP achieves a higher packet delivery ratio, but results in much higher