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The RFID (Radio Frequency IDentification) system is paid attention to as a new identification source that achieves a ubiquitous environment. Each RFID tag has the unique ID, and is attached to some object. A user reads the unique ID of a RFID tag with RFID readers and obtains the information on the object. One of the most important technologies that use the RFID system is the position estimation of...
RFID (Radio Frequency IDentification) systems have become meaningful as a new identification source that is applicable in ubiquitous environments. Each RFID tag has a unique ID, and is attached to some object. A user reads the unique ID of a RFID tag with RFID readers and obtains the information on the object. One of the important technologies that use the RFID systems is the indoor position estimation...
An OFDM system performance is very sensitive to the estimation accuracy of the channel transfer function (CTF) when the scattered pilots were used. Conventional carrier diversity (CD) receiver requires multiple FFT processors and corresponding number of channel estimators according to the increase of the number of diversity antennas. On the other hand, only one FFT processor is need in a pre-FFT antenna...
The RFID (radio frequency identification) tag is expected to be used as a tool of localization. With the localization of RFID tags, a mobile robot with an installed RFID reader can recognize the surrounding environment. In addition, it can be applied to a navigation system for walkers. In this paper, we propose a new scheme named communication range recognition (CRR) in order to localize RFID tags...
This paper focuses on the localization technology of passive RFID (radio frequency identification) tags. By this technology, we will be able to detect some target, to get information on it, and to find the position and the distance of it. This paper proposes a novel scheme named communication range recognition (CRR) in order to localize RFID tags effectively. This scheme finds the edges of the communication...
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