An Integrated System Considering WLAN and DTN for Improving Network Performance: Evaluation for Different Scenarios and Parameters

In this paper, we integrate a Wireless Local Area Network (WLAN) with a Delay Tolerant Network (DTN) to improve the network performance when the network is congested or communication link problems occur. We evaluate the performance under different scenarios for three routing protocols. Simulations are conducted with the Opportunistic Network Environment (ONE) simulator. The simulation results shows that with the increase of the simulation time DTN hosts are in movement for longer time and the probability of the DTN hosts to meet and exchange the data is increased. The usage of DTN improves the performance of the network by sending information with high delivery probability.