Privacy-Preserving Relative Location Based Services for Mobile Users

查看全文 作　　者：Fei [1,2]Ning;Zhuang [1]Yi;GU [1]Jingjing;Cao [3]Jiannong;Yang [4]Liang

机构地区：[1]College of Computer Science and Technology,Nanjing University of Aeronautics and Astronautics;[2]School of Computer Science & Technology,Nanjing University of Posts & Telecommunications;[3]Department of Computing,The Hong Kong Polytechnic University;[4]System Technology Lab,STG,IBM

出　　处：《China Communications》索引2015年第12卷第5期,共10页

基　　金：supported by HONG KONG RGC and HONG KONG PolyU under the Grant G-U752/PolyU5103/09E;the National Natural Science Foundation of Chinaunder Grant No.61003040,No.61202354 摘　　要：Location-aware applications have been used widely with the assistance of the latest positioning features in Smart Phone such as GPS,AGPS,etc.However,all the existing applications gather users' geographical data and transfer them into the pertinent information to give meaning and value.For this kind of solutions,the user's privacy and security issues might be raised because the geographical location has to be exposed to the service provider.A novel and practical solution is proposed in this article to provide the relative location of two mobile users based on their WiFi scanned results without any additional sensors.There is no privacy concern in this solution because end users will not collect and send any sensitive information to the server.This solution adopts a Client/Server(C/S) architecture,where the mobile user as a client reports the ambient WiFi APs and the server calculates the distances based on the WiFi AP's topological relationships.A series of technologies are explored to improve the accuracy of the estimated distance and the corresponding algorithms are proposed.We also prove the feasibility with the prototype of 'Circle Your Friends' System(CYFS) on Android phone which lets the mobile user know the distance between him and his social network friends. 关键词：移动用户隐私保护位置服务客户机/服务器应用程序 AGPS WIFI 敏感信息

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Privacy-Preserving Relative Location Based Services for Mobile Users

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