Fairness issue in message delivery in delay- and disruption-tolerant networks for disaster areas

Asato Takahashi, Hiraki Nishiyama, Nei Kato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

24 Citations (Scopus)

Abstract

Delay- and Disruption-Tolerant Network (DTN) is a promising solution which allows us to communicate to each other even in disaster areas where a large number of users lose network connectivity due to significant damages on network infrastructures by earthquakes, tsunami, tornadoes, and so on. In DTN where messages are transferred from source nodes to destination nodes through other nodes, the communication performance largely depends on the employed routing scheme which determines the feature of the message distribution over the network. A lot of researchers have dedicated their significant efforts to develop an advanced routing algorithm which is superior in terms of message delivery ratio, message deliver delay, and/or efficiency. However, they have not taken into account a criterion, i.e., the fairness in message delivery, which is much more important for users as a service in disaster areas, where DTN takes a role of the access network conveying messages from a huge number of users to a few base stations connected to external networks. In this paper, we first point out that the fairness issue is critical in disaster areas where many-to-one traffic flow exists; messages originating from users in DTN converge on the gateway. Then the performance of existing routing algorithms is evaluated through extensive computer simulations in terms of the fairness in message delivery as well as traditional criteria. The results of performance comparison show that no routing algorithm can achieve the fair message delivery ratio, and the development of advanced routing algorithm is now still an open issue.

Original languageEnglish
Title of host publication2013 International Conference on Computing, Networking and Communications, ICNC 2013
Pages890-894
Number of pages5
DOIs
Publication statusPublished - 2013 May 15
Event2013 International Conference on Computing, Networking and Communications, ICNC 2013 - San Diego, CA, United States
Duration: 2013 Jan 282013 Jan 31

Publication series

Name2013 International Conference on Computing, Networking and Communications, ICNC 2013

Other

Other2013 International Conference on Computing, Networking and Communications, ICNC 2013
CountryUnited States
CitySan Diego, CA
Period13/1/2813/1/31

Keywords

  • Delay- and Disruption-Tolerant Network (DTN)
  • fairness in message delivery
  • relay
  • routing

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

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