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This paper proposed a solution to three-dimensional indoor positioning system based on location fingerprint method. Especially, this paper proposed a automatic offline collection method and realizes a off-line collection system, including a collection server and a mobile collection applications, which can be used to collection the information of location fingerprint conveniently, and also improve...
This paper is concerned with the analysis of connecting PROFIBUS with 4G mobile network to realize the application of 4G in the field bus. First, development status and technical characteristics of PROFIBUS in the industrial network are analyzed, including the requirements of PROFIBUS Fieldbus for wireless communication systems in the intelligent and networking development. Then, the authors introduce...
A Mobile UHF RFID Reader made up of RF frontend, phase lock loop, analog baseband and digital baseband is designed and implemented in a 0.18 um CMOS process. A RX configuration without LNA is adopted in this design for high linearity purpose. The 1 dB input compression point is over 2 dBm and input return loss is better than -10 dB from 840 MHz to 930 MHz. A novel servo loop based DC offset cancellation...
Mobile commerce (M-commerce) is a technological frontier and is an attractive area for research because of its relative novelty, rapid growth, and potential applications. Many contributions of this new discipline have explored and investigated the risks and challenges of m-commerce development, such as the startup problem of the markets, the challenges for 3G telecommunication operators, competition...
In this paper, an improved k-hop cluster based algorithm in mobile ad-hoc networks (MANET) is proposed and its performance is analyzed. Experimental results show that the proposed clustering algorithm outperforms an existing algorithm.
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