Authors: H. Anandakumar; K. Nisha
Addresses: Department of Information Technology, SNS College of Engineering, Kurumbapalayam post, Coimbatore, Tamilnadu 641 107, India ' Department of Information Technology, SNS College of Engineering, Kurumbapalayam post, Coimbatore, Tamilnadu 641 107, India
Abstract: The delay-tolerant networks (DTNs) are a network designed to operate effectively over extreme distance. In DTNs, due to the unique characteristic of frequent partitioning, multicasting becomes a considerably different and challenging problem. In this paper we study multicasting in DTNs and propose a multicasting protocol, cluster-based multicast routing protocol (CBMRP), to support clustering in DTNs. Here multicast data transmission is simulated to transmit data to multiple destinations. Initially the distributed clusters are formed based on their EWMA values and depending on the services offered by mobile nodes inside the cluster, they are split into various groups. The data transmitted from source node is received by all the nodes of the group, in which the destination resides. The results show that our proposed protocol increase the network performance in terms of delivery rate as an epidemic routing scheme, and at a substantially lower overhead in multicast data transmission.
Keywords: delay-tolerant networks; DTNs; cluster-based multicast routing protocols; multicasting; EWMA value; exponentially weighted moving average; epidemic routing; mobile networks; clustering; simulation.
International Journal of Information and Communication Technology, 2015 Vol.7 No.6, pp.676 - 686
Accepted: 09 Jan 2015
Published online: 03 Aug 2015 *