An Adaptive Utility-Based System Routing Protocol

Abstract

Self Adaptive Utility-based Routing Protocol (SAURP) is a new multi-copy routing protocol for Delay Tolerant Networks (DTNs)
that could be made up of a large number of small devices, like smartphones, with different energy resources and buffer spaces.
SAURP can detect possible chances to send messages to their destinations by using a new mechanism based on utility functions.
This mechanism takes into account a number of environmental factors, including the state of the wireless channel, the occupancy of
nodal buffers, and encounter statistics. This means that SAURP may redirect messages around nodes that are suffering congestion,
high buffer occupancy, or wireless interference with very few transmissions. Optimal performance can be achieved by the SAURP
utility function that was constructed; this is further investigated using a stochastic modeling technique. The proposed SAURP is
compared to many previously published encounter-based routing methods in terms of delivery ratio, delivery latency, and the
number of transmissions necessary for each message delivery. Extensive simulations are run to validate the constructed analytical
model. According to the findings of the simulations, SAURP is the best of the multi-copy encounter-based routing protocols that
were investigated for the study