International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 86 - Number 18 |
Year of Publication: 2014 |
Authors: Anjula Mehto, Meenu Chawla |
10.5120/15088-3457 |
Anjula Mehto, Meenu Chawla . Modified Different Neighbor History Spray and Wait using PROPHET in Delay Tolerant Network. International Journal of Computer Applications. 86, 18 ( January 2014), 30-35. DOI=10.5120/15088-3457
Delay Tolerant Networks or Disruption Tolerant Networks are intermittent networks that may lack continuous connectivity as most of the time there does not exist a direct link between source and destination for message transmission. In this paper, Modified DNH (Different Neighbor-History) Spray and Wait using PROPHET is proposed. It improves the wait phase of Different Neighbor-History Spray and Wait. This protocol calculates number of message copies to be forwarded based on performance of receiver node in spray phase and in wait phase the waiting node uses probabilistic routing protocol using history of encounters and transitivity for transmission. Simulation results show that this method improves delivery probability and average latency of transmission as compared to Spray and Wait and also DNH-Spray and Wait routing scheme.