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Density-Aware Route Design for Ferry-Based DTNs Using Partitive Clustering Algorithms

  • Behrouz Jedari
  • Rouhollah Goudarzi
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 56)

Abstract

The Delay Tolerant Networks (DTNs) generally contain relatively sparse nodes that are frequently disconnected. Message Ferrying (MF) is a mobility-assisted approach which utilizes a set of mobile elements to provide communication services in ferry-based DTNs. In this paper, we propose a Density-Aware Route Design (DARD) algorithm using partitive clustering algorithms along a validity index for identifying the suitable node clusters and assigning ferries to these clusters. In the proposed algorithm, unlike using multiple ferries in a single route (SIRA algorithm) or dividing the deployment area into grid as static (NRA and FRA algorithms), the manner of node’s distribution and their density are regarded as clustering metric. Evaluation results for comparing our scheme demonstrate that DARD either minimizes message delivery delay or by preserving message delay, it reduces resource requirements in both ferries and nodes resulting in increasing ferries efficiency.

Keywords

Delay Tolerant Networks Message Ferrying Partitive Clustering 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Behrouz Jedari
    • 1
  • Rouhollah Goudarzi
    • 1
  1. 1.Electronic & Computer & IT Engineering DepartmentIslamic Azad University of QazvinIran

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