An optimized probabilistic routing protocol based on scheduling mechanism for delay tolerant network

Abstract

How to achieve efficient data transmission in delay tolerant network (DTN) is an important issue to many wireless or mobile systems. In this study, we propose a new routing protocol to improve delivery rate and optimize delivery delay with low overhead in DTN. We extend the classic PROPHET routing protocol by a scheduling policy to increase delivery rate and reduce delivery delay in DTN. We try to improve the performance of traditional PROPHET from both storage and transmission. Moreover, we evaluate the performance of the scheduling protocol by ONE Simulator. The simulation result illustrates that the proposed protocol is able to achieve better performance compared with the classic protocols like PROPHET and Epidemic in several key aspects.