Distribution of WLAN received signal strength indication for indoor location determination
Distribution of WLAN received signal strength indication for indoor location determination
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DOI：
10.1109/iswpc.2006.1613601
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发表时间：
2006-04
期刊：
影响因子：
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通讯作者：
K. Kaemarungsi
中科院分区：
文献类型：
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作者：
K. Kaemarungsi
室内定位系统是为室内位置感知计算提供位置信息所需的平台。本研究的重点是一种称为位置指纹技术的室内定位系统，它利用无线局域网（WLAN）接口的接收信号强度指示（RSSI）。到目前为止，RSSI的许多特征还没有得到彻底的研究。许多研究者依赖于RSSI作为传感器信息来确定物体的位置，而忽略了RSSI的特性。因此，本文从室内定位系统的角度探讨RSSI的潜在机制。特别是，通过广泛的测量实验，研究了来自五个不同的IEEE 802.11b/g WLAN接口的RSSI分布。还根据测量结果确定了用于位置指纹识别的WLAN接口的所需属性。最终目标是利用这里获得的额外知识来提高定位性能，并对基于位置指纹的室内定位系统进行建模。
Indoor positioning systems are platforms required to provide location information for indoor location-aware computing. This study focuses on a type of indoor positioning systems called location fingerprinting technique that utilizes received signal strength indication (RSSI) of wireless local area network (WLAN) interfaces. Thus far, many characteristics of RSSI have not been thoroughly investigated. Many researchers have relied on the RSSI as sensor information to determine objects location while ignoring the characteristic of RSSI. Therefore, this paper looks into underlying mechanism of RSSI from the indoor positioning systems perspective. In particular, the distributions of RSSI from five different IEEE 802.11b/g WLAN interfaces are investigated using extensive measurement experiments. Desired properties of WLAN interfaces for location fingerprinting are also identified based on the measurement results. The ultimate goal is to use additional knowledge gained here to improve positioning performance and to model location fingerprinting based indoor positioning systems.