Factual Demonstration of Blockchain Routing in Delay Tolerant Network

Abstract

Frequent disconnection, high end-to-end latency, dynamic topology, sparse node density, lack of pre-existing infrastructure, and opportunistic message transmission on wireless link, makes routing difficult in Opportunistic network (Oppnet). In present scenario, Oppnet allows the people to interact with contrasting ways like with diverse mobility, groups, and etc. During transmission of messages in such network security and trust performs major role. Delay Tolerant Network (DTN) are much prone of having inherent risk of attack. Malicious node, selfish node, and attacks are major impact on deteriorating network performance. To prevent the network from such deteriorating factors, this paper introduces the new platform to provide reliable and authentic transmission of message in opportunistic network. Blockchain-based Routing in Opportunistic Network (BRON) uses the concept of Blockchain through which each node work as an authentic node and transmit the secure messages in Oppnet. Opportunistic Network Environment (ONE) tool is used to implement BRON. This protocol generates 36% reduced packet drops ratio, 57% enhanced delivery ratio, 55% lesser overhead ratio, 35.2% reduced average latency, and 65% lesser average buffer time as compared to direct delivery ratio with respect to number of nodes.

Spider Monkey Algorithm for Enhancing Security in Delay Tolerant Network

“…Moreover, DTN is comprised of mobile nodes which are suffering opportunistic communication, regularly changing network topology because of the absence of end-to-end connectivity, and sparse connection [15]. As well, DTN contains two uncooperative nodes such as a malicious node and a selfish node [16]. Consequently, the selfish node is reluctant for forwarding packets to the destination using other nodes [17].…”