In a rapid communication development, the wireless and embedded technologies have created enormous innovations towards mobile environment. In that, Delay Tolerant Network (DTN) is a heterogeneous Network, where there is no proper end to end connection between source and destination. On the other hand, Delay Tolerant Sensor Network (DTSN) is a collection of sensor nodes which consist of transceivers and sensors for traffic monitoring between nodes in the network. Since sensor nodes are battery operated with minimum energy, the information must be conveyed from source to destination without failure even in a critical situation. The traditional routing protocols are inefficient for these mobile based DTSN, since they require existence of connected end to end paths to be able to route any data reliably and energy efficiently to improve the security owing to the poor routing. This paper illustrates an energy efficient routing protocol with the objectives of providing reliable security among nodes in the DTSN. In addition, the proposed routing method also has the intension to enhance the Quality of Service (QoS) by reducing transmission time, packet loss and delayed response through balancing energy consumption among nodes in the networks. Comparative analysis has also been done and the proposed Energy Efficient Routing Protocol (EERP) outperforms the previous method in terms of Quality of service.
The highly successful architecture and protocols of today’s Internet may operate poorly in environments characterized by very long delay paths and frequent network partitions. Delay Tolerant Networks (DTNs) are emerging solutions to networks that experience frequent network partitions and large end-to-end delays. In this paper, we study how to provide high-performance routing technique in DTNs. We develop a multicasting mechanism based on requirement of path discovery and overall situation awareness of link availability to address the challenges of opportunistic link connectivity in DTNs. Simulation results show that this method can achieve a better message delivery ratio than existing approaches, e.g. DTBR (a dynamic tree-based routing), with similar delay performance. ERBR approach also achieves better efficiency performance when the probability of link unavailability is high and the duration of link downtime is large.
The highly successful architecture and protocols of today’s Internet may operate poorly in environments characterized by very long delay paths and frequent network partitions. Delay Tolerant Networks (DTNs) are emerging solutions to networks that experience frequent network partitions and large end-to-end delays. In this paper, we study how to provide high-performance routing technique in DTNs. We develop a multicasting mechanism based on requirement of path discovery and overall situation awareness of link availability to address the challenges of opportunistic link connectivity in DTNs. Simulation results show that this method can achieve a better message delivery ratio than existing approaches, e.g. DTBR (a dynamic tree-based routing), with similar delay performance. ERBR approach also achieves better efficiency performance when the probability of link unavailability is high and the duration of link downtime is large.
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