Energy efficient CBMT for secure multicast key distribution in mobile ad hoc networks

Multicast key distribution in mobile adhoc networks is challenging due to its inherent characteristics of infrastructure-less architecture with lack of central authority and limited resources such as bandwidth, time and power. In many multicast interactions, a new member can join, a current member can leave at any time and existing members must communicate securely using multicast key distribution within constrained energy for mobile adhoc networks. This paper proposes a new efficient cluster based multicast tree (CBMT) algorithm for secure multicast key distribution, in which the source node uses a Multicast version of the Destination Sequenced Distance Vector (MDSDV) routing protocol to consume less energy. It also reduces end to end delay in multicast transmission. Simulation results show the efficient CBMT using MDSDV have better system performance in terms of QOS metrics such as energy, latency, key delivery ratio and packet drop rate under varying network conditions. This proposed scheme achieves reliability, while exhibiting low packet loss rate with high key delivery ratio.