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Asymmetric Spray and Multi-forwarding for Delay Tolerant Networks

  • Yue Cao
  • Haitham Cruickshank
  • Zhili Sun
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 71)

Abstract

The framework of Delay Tolerant Networks (DTNs) has received an extensive attention from academic community because of its application ranging from Wireless Sensor Networks (WSNs) to interplanetary networks. It has a promising future in military affairs, scientific research and exploration. Due to the characteristic of long delay, intermittent connectivity and limited network resource, the traditional routing algorithms do not perform well in DTNs. In this paper, our proposed algorithm is based on an asymmetric spray mechanism combining with the concept of message classes. For each message class, a corresponding forwarding queue is designed and these queues are scheduled according to their priorities. Together with other designed assistant functions, our proposed algorithm outperforms other state of the art algorithms in terms of delivery ratio, overhead ratio, average latency as well as energy consumption.

Keywords

Delay Tolerant Networks Routing Algorithms 

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Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2011

Authors and Affiliations

  • Yue Cao
    • 1
  • Haitham Cruickshank
    • 1
  • Zhili Sun
    • 1
  1. 1.Centre for Communication System ResearchUniversity of SurreyGuildfordUK

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