Monitoring continuous k-nearest neighbor queries in the hybrid wireless network  

作　　者：Young-Mo KWON HaRim JUNG Yon Dohn CHUNG 

机构地区：[1]Department of Computer Science and Engineering,Korea University,Seoul 136-713,Korea

出　　处：《Journal of Zhejiang University-Science C(Computers and Electronics)》2011年第3期213-220,共8页浙江大学学报C辑（计算机与电子（英文版）

基　　金：Project supported by the second stage of the Brain Korea 21 Project

摘　　要：In a mobile/pervasive computing environment,one of the most important goals of monitoring continuous spatial queries is to reduce communication cost for location-updates.Existing work uses many cellular wireless connections,which would easily become the performance bottleneck of the overall system.This paper introduces a novel continuous kNN query monitoring method to reduce communication cost in the hybrid wireless network,where the moving objects in the wireless broadcasting system construct the ad-hoc network.Simulation results prove the efficiency of the proposed method,which leverages the wireless broadcasting channel as well as the WiFi link to alleviate the burden on the cellular uplink communication cost.In a mobile/pervasive computing environment, one of the most important goals of monitoring continuous spatial queries is to reduce communication cost for location-updates. Existing work uses many cellular wireless connections, which would easily become the performance bottleneck of the overall system. This paper introduces a novel continuous kNN query monitoring method to reduce communication cost in the hybrid wireless network, where the moving objects in the wireless broadcasting system construct the ad-hoc network. Simulation results prove the efficiency of the proposed method, which leverages the wireless broadcasting channel as well as the WiFi link to alleviate the burden on the cellular uplink communication cost.

关 键 词：Continuous kNN query monitoring Ad-hoc networks Wireless broadcasting systems 

分 类 号：TN92[电子电信—通信与信息系统]