A Novel Adaptive Wi-Fi System With Rfid Technology

Abstract

A novel adaptive Wireless-Fidelity (Wi-Fi) system is the combination of radio frequency identification (RFID) technology, programmable intelligent microcontroller development board (PIDB) and reconfigurable antenna with beam shape characteristics. The system is capable to sustain a Wi-Fi signal adaptively above its threshold level (−81 dBm) within a range up to 100 m across three different buildings with variety indoor environments and floors. It is found that the modified ground reflection model has successfully predicted the total path loss of the test-bay buildings which consist of corridors, several floors and windows. The modified propagation model is extremely crucial in determining the projection and height of

Performance-Optimized Quadrate Bowtie Rfid Antennas for Cost-Effective and Eco-Friendly Industrial Applications

“…Therefore, an RFID tag antenna attached on a target object plays a crucial role in determining the overall performance of an RFID system. Presently much effort is dedicated to the development of RFID antennas by implementing various technologies [4][5][6]; however, the development area appears deserted while encountering the issues interconnected to the field of economic and eco-friendly tags comprising of paper substrate. It often overlooked while mentioning the paper printed RFID tags that use of paper defines the entirely new era of electrical performance, which encounters from, new set of issues [7,8].…”

Evaluation of the Zigbee Transmission Repetition Mechanism in the Variably-Loaded Reverberation Chamber

“…Now, assuming that the signal is transmitted into an AWGN (Additive White Gaussian Noise) radio channel, the output signal will be in the form given by Equation (3), where x(t), n(t) and y(t) represent, respectively, the input signal, the channel white noise and the channel output signal.…”

“…The recent decade has been marked by a rapid growth of interest in applications involving the deployment of wireless sensor networks (some examples given in [1][2][3]). It has been in fact envisaged in Reference [4] at the end of the former century as one of the 21 key ideas that would drive the technical progress in the 21st century.…”

A Design of Compact Radial Line Slot Array (Rlsa) Antennas for Wi-Fi Market Needs

“…Due to the advantages of RLSA antennas, such as high gain, flat and high efficiency [2][3][4], RLSA antennas were also developed for other applications, such as for Wi-Fi [5][6][7][8][9][10][11][12][13][14]. In contrast to satellite applications, Wi-Fi needs much smaller antennas.…”