Channel characterisation for indoor wearable active RFID at 868 MHz
Channel characterisation for indoor wearable active RFID at 868 MHz
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868 MHz 室内可穿戴有源 RFID 的通道特性
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
J. McQuiston
中科院分区：
文献类型：
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作者：
S. Cotton;William P. L. Cully;W. Scanlon;J. McQuiston
用于定位和跟踪人的有源射频识别系统将受到影响其他形式的可穿戴通信的相同的以身体为中心的过程。为了实现制造具有多年寿命的人体佩戴标签的目标，有必要了解可能影响读取器标签询问过程的通道条件。在本文中，我们介绍了在868 MHz进行的室内信道测量活动的初步结果，该活动旨在了解手腕佩戴标签的信号特征并对其进行建模。利用基于Akaike信息准则的模型选择过程，最常选择对数正态分布来描述接收信号的幅度。提供了参数估计，以便可以容易地模拟在本研究中调查的信道。
Active radio-frequency identification systems that are used for the localisation and tracking of people will be subject to the same body centric processes that impact other forms of wearable communications. To achieve the goal of creating body worn tags with multiyear life spans, it will be necessary to gain an understanding of the channel conditions which are likely to impact the reader-tag interrogation process. In this paper we present the preliminary results of an indoor channel measurement campaign conducted at 868 MHz aimed at understanding and modelling signal characteristics for a wrist-worn tag. Using a model selection process based on the Akaike Information Criterion, the lognormal distribution was selected most often to describe the received signal amplitude. Parameter estimates are provided so that the channels investigated in this study may be readily simulated.