CAN-QTree: A Distributed Spatial Index for Peer-to-Peer Networks

  • Authors:

  • Huaiyu Zuo;Ning Jing;Yadan Deng;Luo Chen

  • Affiliations:

  • -;-;-;-

  • Venue:
  • HPCC '08 Proceedings of the 2008 10th IEEE International Conference on High Performance Computing and Communications
  • Year:
  • 2008

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Abstract

We present a distributed spatial index called CANQTree based on a Content-Addressable Network (CAN) and QuadTree-alike structures. In our system, both spatial objects and their corresponding nodes in a QuadTree are identified by some points and mapped into CAN zones of peers. For a given spatial range query, CAN-QTree can provide O(n1/2) search performance. With a uniform distribution of spatial objects, given ε 0, CAN-QTree can provably maintain a load imbalance of at most 2+ε between a highest loaded peer and a lightest loaded peer. Simulations show that our CAN-QTree is an effective spatial index with a guarantee of good load-balancing.