Contact Quality Aware Routing for Satellite-Terrestrial Delay Tolerant Network

  • Wenfeng Shi
  • Deyun Gao
  • Huachun Zhou
  • Qi Xu
  • Guanglei Li
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 234)


In space delay tolerant network (DTN), the absence of adequate nodes makes the communication opportunities precious. If the messages are transmitted using a path which exists high bit error, it can increase the delivery delay and reduce the delivery ratio. Therefore, how to distinguish the contact quality and select a path with little bit error is crucial to improve the network performance. In this paper, we propose a contact quality aware routing which operates cooperatively with Licklider Transmission Protocol (LTP). We use the processing signals in LTP to reflect the contact quality. Further more, we propose a contact quality based forwarding scheme to select a path which exists little bit error. The enhancements are verified using a test-bed with 15 simulation nodes. The experiments show that the proposed schemes can reduce the delivery delay, increase the delivery ratio and improve the throughput.


Space delay tolerant network LTP Contact quality aware routing 



This work was supported in part by NSAF of China under Grant No. U1530118, National Basic Research Program of China (973 program) under Grant No. 2013CB329101, and National High Technology of China (863 program) under Grant No. 2015AA015702.


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Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2018

Authors and Affiliations

  • Wenfeng Shi
    • 1
  • Deyun Gao
    • 1
  • Huachun Zhou
    • 1
  • Qi Xu
    • 1
  • Guanglei Li
    • 1
  1. 1.School of Electronic and Information EngineeringBeijing Jiaotong UniversityBeijingChina

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