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时尚通信体验报告:不一样的移动信息化生活
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《信息化建设》 2003年第12期41-41,共1页
手机游戏、手机炒股、手机信用卡、彩信、掌上宽带、无线上网……一个个耳熟能详的名词正有力地撞击着我们的耳膜。且一步步走进我们的日常生活。目前,浙江移动和报社共同举办了“时尚通信体验”活动,从近千人中挑选了若干名来自各行... 手机游戏、手机炒股、手机信用卡、彩信、掌上宽带、无线上网……一个个耳熟能详的名词正有力地撞击着我们的耳膜。且一步步走进我们的日常生活。目前,浙江移动和报社共同举办了“时尚通信体验”活动,从近千人中挑选了若干名来自各行各业的手机发烧友亲身体验,与浙江移动的“移动先锋”新业务做了一次亲密接触。 展开更多
关键词 “移动先锋”业务 浙江移动通信公司 “手机定位”服务 生活体验
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An RSSl Gradient-based AP Localization Algorithm 被引量:4
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作者 ZHAO Fang LUO Haiyong +1 位作者 GENG Hao SUN Qijin 《China Communications》 SCIE CSCD 2014年第2期100-108,共9页
Recent rapid rise of indoor location based services for smartphones has further increased the importance of precise localization of Wi-Fi Access Point(AP).However,most existing AP localization algorithms either exhibi... Recent rapid rise of indoor location based services for smartphones has further increased the importance of precise localization of Wi-Fi Access Point(AP).However,most existing AP localization algorithms either exhibit high errors or need specialized hardware in practical scenarios.In this paper,we propose a novel RSSI gradient-based AP localization algorithm.It consists of the following three major steps:firstly,it uses the local received signal strength variations to estimate the direction(minus gradient) of AP,then employs a direction clustering method to identify and filter measurement outliers,and finally adopts triangulation method to localize AP with the selected gradient directions.Experimental results demonstrate that the average localization error of our proposed algorithm is less than 2meters,far outperforming that of the weighted centroid approach. 展开更多
关键词 AP localization RSSI gradient CLUSTERING TRIANGULATION
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