Comparing Delay Tolerant Network Routing Protocols for Optimizing L-Copies in Spray and Wait Routing for Minimum Delay
Anjula Mehto, Meenu Chawla · 2013
www.manit.ac.in Delay Tolerant Network (DTN) is special type of wireless mobile ad hoc network characterized by intermittent connectivity, long or variable delay, asymmetric data rate and high error rates. In this paper we compare some of the well-known routing protocols namely Epidemic, Spray and Wait (SaW), Probabilistic ROuting Protocol using History of Encounters and Transitivity (PROPHET), and MaxProp. Simulation results show that delivery ratio is almost equal for both MaxProp and SaW and the overhead ratio is much less for SaW as compared to MaxProp. Average delay of SaW is slightly higher. Simulation results also show that 20%-25 % L copies of the total number of nodes in the network gives better delivery ratio and less overhead with minimum average delay in SaW.