Using Buffer Space Advertisements to Avoid Congestion in Mobile Opportunistic DTNs

  • Jani Lakkakorpi
  • Mikko Pitkänen
  • Jörg Ott
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6649)


This paper investigates congestion control in opportunistic networks that use delay-tolerant networking (DTN) as a basis for communication. We propose a mechanism that advertises buffer occupancy information to adjacent nodes and avoids forwarding through nodes with high buffer occupancy. The nodes then achieve global congestion avoidance simply based on locally available information. The proposed mechanism works independent of the routing protocol and is thus applicable to wide array of scenarios. Extensive simulations, with different node mobility models and radio modeling, indicate that the proposed mechanism improves message delivery ratio and decreases end-to-end delay.


DTN congestion control ns-2 opportunistic network 


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Copyright information

© IFIP International Federation for Information Processing 2011

Authors and Affiliations

  • Jani Lakkakorpi
    • 1
  • Mikko Pitkänen
    • 1
  • Jörg Ott
    • 1
  1. 1.Department of Communications and NetworkingAalto UniversityAALTOFinland

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