Title
Distributive Generation Algorithm of Long Range Contact for Remote Spatial-data Access on P2P Delaunay Network
Abstract
A P2P Delaunay network is a network that connects nodes over 2-dimensional plane by utilizing a well-known geometric structure, a Delaunay triangulation in computational geographically geometry. This structure possesses the property that two adjacent nodes are connected. We have shown its autonomous generation algorithm in P2P settings with a greedy routing among two arbitrary nodes, and also shown the extensibility of the network. By setting Voronoi regions as a node's governing a area, a P2P Delaunay network works as a spatial database, and we can easily embed a range query mechanism over the network, realizing a extensible spatial database in P2P contexts. We aim at the diverse applications in geographical information systems(GIS), virtual collaboration systems, location-aware services, and so on. However, in case a P2P Delaunay network consists of a large number of nodes, its diameter and hop counts between two nodes increase in O(N1/2), which causes a serious communication delay in remote data accesses. Hence, we here propose Long Range Contact(LRC) for a P2P Delaunay network and its distributive generation algorithm. Our LRC is a set of bridges that connect two nodes in O(logN) hops with O(logN) node degree. We present a combination of horizontal/vertical generation algorithm in a collaboration of autonomous nodes, as well as a routing methods that utilizes LRC. We also evaluate both CPU and communication loads in our LRC generation, as well as routing efficiencies of LRC numerically. Finally, we discuss application fields of a P2P Delaunay network with LRC.
Year
DOI
Venue
2007
10.1109/C5.2007.10
C++
Keywords
Field
DocType
delaunay triangulation,p2p delaunay network,p2p setting,utilizes lrc,p2p delaunay network work,long range contact,nodes increase,remote spatial-data access,distributive generation algorithm,p2p context,autonomous generation algorithm,lrc generation,p2p,geographic information system,spatial database,greedy algorithms,data access,2 dimensional,generic algorithm,computational geometry,range query,spatial data,mesh generation
Spatial analysis,Computer science,Computational geometry,Range query (data structures),Algorithm,Greedy algorithm,Voronoi diagram,Mesh generation,Spatial database,Delaunay triangulation,Distributed computing
Conference
ISBN
Citations 
PageRank 
0-7695-2806-6
3
0.43
References 
Authors
10
5
Name
Order
Citations
PageRank
Masaaki Ohnishi1749.89
Shinji Tsuboi260.89
Masao Hirayama330.43
Takayuki Eguchi490.97
Shinichi Ueshima54515.31