Abstract

Energy is a critical resource for mobile devices as it determines the stability of a network and affects the packet delivery ratio (PDR) in Mobile Ad-hoc Networks (MANETs). ODMRP and CAMP have been analyzed by only a few researchers earlier and most of the studies compare them using the Quality-of-Service parameters including throughput, PDR and latency, by varying the network size, number of senders and node speed. This paper adds a new dimension of energy utilization to the analysis by examining these two popular protocols using their energy efficiency and related parameters such as hop count and control overhead. The two protocols have been simulated and monitored here using NS3 tool which has not been used in previous researches for multicast routing protocols. The tool provides a scalable realistic environment with result analysis capability and it allows addition of modules for new protocol implementation. Secondly, the paper performs statistical comparison of the two protocols using nonparametric test for statistical confirmation of the simulation results. The outcomes of the analysis show CAMP to perform better in all dynamic scenarios for energy metric except in changing node speed. The results are derived after using an underlying demand based unicast routing protocol for CAMP implementation not used in earlier implementations. The analysis results of this research may be used by the network administrators to choose appropriate multicast routing mechanism where network stability cannot be compromised due to limited energy.