An Algorithmic Approach for Core Election in Mobile Ad-hoc Network

Abstract

Multicasting has an important contribution in a wireless sensor network. Through multicasting, multiple copies of data at the same time in a single transmission can be transmitted to a group of interested users. This reduces the multiple unicasting and hence increases efficiency in term of overhead and reliability in term of delay in the presence of dynamic topology. In this paper, an efficient core is elected within the receiver group on some predefined parameters. Likewise, to increase the reliability in term of delay, a mirror core is introduced. In case of the failure of primary core, the mirror core takes the responsibility as a primary core and communication of the group is continued without any delay. To achieve the above goals, an algorithm is proposed for core-based protocol and mathematical model is used to analyze the overhead performance. Finally, the performance of efficiency and reliability is measured in Network Simulator 2 (NS-2).