A hybrid CDN-P2P system for Earth observation data delivery

Yi Liu, Bin Li, Jianya Gong, Wei Guo

Research output: Contribution to journalConference articlepeer-review


This paper presents a P2P approach to the delivery of earth-observation data. Conventional P2P networks can speed up data delivery but suffers the problem of stability when handling spatial data. We design a hybrid CDN-P2P strategy to speed up data delivery while maintaining stability. We tested our strategy in a simulation environment in which performance of data transfer is observed against different bandwidths. The results show that the hybrid approach performs much better than the conventional only-server and only-peers model. Dynamic allocation of peers and predownload are also presented as strategies to address the special needs of spatial data delivery.

Original languageEnglish
Article number72852Y
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2008
EventInternational Conference on Earth Observation Data Processing and Analysis, ICEODPA - Wuhan, China
Duration: Dec 28 2008Dec 30 2008


  • Hybrid CDN
  • Peer-to-Peer
  • Spatial data delivery


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