Performance Evaluation of Delay Tolerant Network in Heterogeneous Highly Dense Mobile Environment

TL;DR

This paper evaluates the performance of delay tolerant networks in highly dense, heterogeneous mobile environments, revealing that beyond certain thresholds, increased density does not significantly impact delay, and more nodes or connections have minimal effect.

Contribution

It introduces a simulation-based analysis of DTN performance in dense mobile environments, identifying threshold effects and the limited impact of increased node density and connections.

Findings

Dense mobile node features do not increase delay beyond thresholds

Increasing mobile nodes and connections has minimal impact on performance

Simulation results validate the proposed parameters' effectiveness

Abstract

Delay tolerant network (DTN) is opportunistic network where each node searches best opportunity to deliver the message called bundle to the destination. DTN implements a store and forward message switching system by simply introducing another new protocol layer called the Bundle Layer on top of the transport layer. The bundle layer is responsible for storing and forwarding entire message in message segments called bundles between source node and destination node. This paper evaluates the performance of delay tolerant network layer in heterogeneous highly dense mobile node environment. The heterogeneous network is created with the help of stationary wired node and Base Station node by introducing dynamic dense Mobile node network. Mobile nodes are assigned with continuous mobility. Three parameters are suggested $\Delta$, $\Theta$ and $\lambda$ to correlate the results obtained using rigorous simulation. Results show that after some threshold values, dense feature about mobile node does not pretend the delay cause for delay tolerant network packets. Also, increase in number of mobile node and number of File Transfer connection rarely change the overall performance of the delay tolerant network.