基于网格Quorum的位置服务模型

Mesh Quorum-based Location Service Model

在基于地理位置的无线自组网络中,基于Quorum的位置服务模型需要较大维护和查询开销。针对该问题提出一种基于网格Quorum的改进模型,完善相应的位置服务管理节点的选取和移交算法。采用网络仿真软件NS2对2种模型进行比较,结果表明改进模型维持了较好的查询成功率和查询路径长度。

In geo-location-based Ad hoc network,the maintenance and query cost of Quorum-based location service model is high.Aiming at this problem,this paper proposes an improved Mesh Quorum-based Location Service（MQLS） model,consummates the relative selection and handover algorithm for location service and management node.The simulation results of NS2 show that improved model keeps good query success rate and query path length.