基于广播空间数据安全查询方法

Spatial Data Query Method based on Safety Broadcast

索引提供了选择性调优,为了节约电池,客户需等待并调优到最佳索引段。在位置感知移动服务里(LAMSs),由于晚查询响应可能包含过时的信息,重要的是要减少查询响应时间。因此提出一个基于广播空间查询方案,处理方案旨在支持最邻近查询处理。分配方案中,广播数据项按顺序进行排序,基于其位置和客户可以选择性地调整到所需的数据项,而不需要一个索引段。由此产生的延迟和调优时间已经接近最优值,作为分析和仿真结果显示。

This index provides a selective tuning, in order to save bat ery, customers need to wait and tune the best index segment. In location-aware mobile services in （LAMSs）, due to the late query response may contain outdated information, it is important to reduce the query response time. Therefore propose a broadcast-based spatial query program, treatment program designed to support the nearest query processing. Al ocation scheme, the broadcast data in order to sort the items can be selectively adjusted to the customers based on their location and the necessary data items without the need for a segment index. Time delay and the resulting tune is close to the optimal value, as the analysis and simulation results show.