Title | ||
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An Extension of Virtual Globe to Build On-Demand Geospatial Data Sharing Capability Using Peer-to-Peer Technology. |
Abstract | ||
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In the virtual globe system, ever higher performance is demanded for high quality service, especially when requesting intensive data from large-scale networks, such as large scene 3D city models with fine textures. Extending the virtual globe platform from the present centralized mode into a decentralized mode can significantly improve platform capacity and service quality without additional investment in hardware, but presents new challenges such as the time cost of finding a peer, unstable offering, and low service capacity. A GeoODP2P network is designed based on specific features of spatial data transmission. Next, we discuss peer selection mechanisms that relieve the negative influence of peers, and propose a pre-fetch mechanism that takes advantage of the unique characteristics of the P2P environment. This article implements a simulation system for a GeoODP2P network and presents a prototype platform that incorporates P2P functionality. Peer selection and pre-fetch mechanisms are studied and tested on this simulation system. The prototype platform run in a real scenario demonstrates the effectiveness of applying P2P to a virtual globe platform. |
Year | DOI | Venue |
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2012 | 10.1111/j.1467-9671.2012.01346.x | TRANSACTIONS IN GIS |
Keywords | DocType | Volume |
null | Journal | 16 |
Issue | ISSN | Citations |
6 | 1361-1682 | 0 |
PageRank | References | Authors |
0.34 | 6 | 3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Yi Liu | 1 | 27 | 6.37 |
Bin Li | 2 | 924 | 94.55 |
Li-Wei Fan | 3 | 71 | 5.36 |