Spatial range query on unstructured P2P networks

At present,spatial data has been widely used in many fields,such as GIS.Nevertheless,with the explosion of spatial data and burst from user application demands,lacking of scalability and the trend of being bottle neck have been faded up from traditional centralized GIS.The range query for spatial data is the one of the typical applications.This paper presents a method of range query based on group P2P structure,which can provide high query efficiency,load balance and scalability.In the end,the method has proved validity by implementation.