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This paper presents 3D radiation pattern analyses for omnidirectional (dipole) and directional (patch) antennas for various body locations encompassing wrist orientations and chest positions when mounted on a body phantom. In addition to analysing the directivities and relative efficiencies at 2.44GHz for different body positions, the study considers Sector and Slice analysis of the radiation patterns...
This paper presents a detailed investigation into off-body links for wrist mounted Bluetooth Low Energy (BLE) devices for an indoor environment and revolves around three low profile antennas (microstrip patch, printed monopole and external monopole). It studies the received signal strength across different usage scenarios and obstructions such as body shadow, wall and ceiling through measurement campaigns...
The study has proposed a novel and innovative system that uses image processing techniques for converting an imprinted Braille pattern into natural language character. The processing takes place through a series of steps implemented in MATLAB. The major step is the removal of noise from the scanned image of an imprinted Braille pattern and other artifacts and then segmenting the scanned image to yield...
In this paper, an innovative low complexity triple layer Wireless Sensor Network (WSN) system is proposed, which monitors M-ary events like temperature, pressure, etc. with the help of geographically distributed local sensors. These local sensors convey signals to the fusion centre using M-ary Frequency Shift Keying (MFSK) modulation scheme over Rayleigh fading channels. At the fusion centre, non...
In this paper, an innovative and highly optimal triple layer Wireless Sensor Network (WSN) system is analyzed and illustrated, which monitors M-ary events like temperature, pressure, humidity, etc. with the help of geographically distributed local sensors. These local sensors are made to convey signals to the fusion centre using M-ary Frequency Shift Keying (MFSK) modulation scheme over Rayleigh fading...
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