On the better performance of ADMR versus ODMRP

This paper presents a comparative performance analysis in more realistic scenario and more performance metrics of ADMR and ODMRP, two on-demand multicast routing protocols for Mobile Ad hoc Networks (MANETs) and Wireless Sensor Networks (WSNs). There are a few comparison works done between two multicast Ad hoc routing protocols, ADMR and ODMRP; these works are not complete in terms of both performance metrics and realistic scenarios. Simulation results show an unusual low number of control packets transmitted per data packet delivered in ADMR, this low number of control packet transmitted per data packet in ADMR has caused some comparison works to judge to better performance of ADMR than ODMRP, but we have described this result because of ADMR flooding behavior and its higher number of data packets rather than a positive point for ADMR. To show that, we have introduced Transmission Load, a new performance metric to measure transmission load of protocol to network while transmitting data packets in network, simulation results show that ADMR has at least more than 1.7 times greater transmission load and also at least 7 second more delay than ODMRP during simulation time.