摘要
为搭建可见光通信(VLC)的室内定位信标部署,利用广泛分布的照明网络作为室内定位信标节点,并结合定位需求构成信标服务体系。将单个照明光源看作服从朗伯辐射模型的信标节点,将各信标节点按照蜂窝、矩形规律在空间上离散分布,并同时向所在室内空间发送特定的定位信标。用户获取信标节点提供的信标信息即可确定自己所处的室内位置,实现室内定位。文中介绍了信标节点的两种部署状态,并研究了两种部署状态下的光束覆盖率和所需信标节点个数。并进一步分析两种信标部署方式下的信干比,为室内构建定位信标系统提供了理论支撑。
To set up indoor positioning beacon deployment based on visible light communication(VLC),using a widely distributed lighting network as an indoor positioning beacon node,and combined with positioning requirements to form a beacon service system.Consider a single illumination source as a beacon node obeying the Lambertian radiation model,discretely distribute beacon nodes in the space according to the law of cellular and rectangle,at the same time,a specific positioning beacon is sent to the indoor space.The user obtains the beacon information provided by the beacon node to determine the indoor location located,and realize indoor positioning.This article describes the two deployment states of beacon nodes,The beam coverage and the number of required beacon nodes in two deployment states are studied and further analyzed the signal-to-interference ratio of the two beacon deployment modes,which provides theoretical support for building an indoor positioning beacon system.
作者
李昂阳
闫坤
程明
成顺利
李卓
LI Angyang;YAN Kun;CHENG Ming;CHENG Shunli;LI Zhuo(School of Information and Communication,Guilin University of Electronic Technology,Guilin Guangxi 541000,China)
出处
《激光杂志》
北大核心
2019年第5期131-136,共6页
Laser Journal
基金
桂林电子科技大学研究生院(No.2017YJCX19)
关键词
VLC
信标部署
信干比
VLC
beacon deployment
signal-to-interference ratio
