Search Results - "Johansson, A.J."

A Measurement-Based Fading Model for Wireless Personal Area Networks by Karedal, J., Johansson, A.J., Tufvesson, F., Molisch, A.F.

“…Personal area networks (PANs) are wireless communications systems with high data rates but small coverage area. PAN propagation channels differ from the…”
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The Composite Channel Method: Efficient Experimental Evaluation of a Realistic MIMO Terminal in the Presence of a Human Body by Harrysson, F., Medbo, J., Molisch, A.F., Johansson, A.J., Tufvesson, F.

“…The immediate environment of the transmit (TX) and receive (RX) antennas, including the antenna casings and the users holding the antennas, has a strong impact…”
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Shadowing Effects in MIMO Channels for Personal Area Networks by Karedal, J., Johansson, A.J., Tufvesson, F., Molisch, A.F.

“…In this paper we analyze the effects of body shadowing in multiple-input-multiple-output (MIMO) channels used for personal area networks (PANs). We give…”
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Measured Diversity Gains from MIMO Antenna Selection by Almers, P., Santos, T., Tufvesson, F., Molisch, A.R., Karedal, J., Johansson, A.J.

“…We investigate the diversity gain of MIMO systems with antenna selection in measured propagation channels for wireless personal area networks. We measure both…”
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MIMO channel measurements for personal area networks by Johansson, A.J., Karedal, J., Tufvesson, F., Molisch, A.F.

“…This paper analyzes MIMO propagation channels for personal area networks. Such channels show important differences to propagation channels in wide-area…”
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Performance of a radio link between a base station and a medical implant utilising the MICS standard by Johansson, A.J.

“…Modern medical implants are of increasing complexity and with that, the need for fast and flexible communication with them grows. A wireless system is…”
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Wave-propagation from medical implants-influence of body shape on radiation pattern by Johansson, A.J.

“…The new standard medical implant communications service (MICS) for communication with medical implants uses the 403-405 MHz band. The influence of a patient's…”
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Spike library based simulator for extracellular single unit neuronal signals by Thorbergsson, P.T., Jorntell, H., Bengtsson, F., Garwicz, M., Schouenborg, J., Johansson, A.J.

“…A well defined set of design criteria is of great importance in the process of designing brain machine interfaces (BMI) based on extracellular recordings with…”
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Simulation and verification of pacemaker antennas by Johansson, A.J.

“…Two different antennas for use in implanted pacemakers are analyzed by simulation and measurement. The analysis was made with an FDTD-code. The simulations and…”
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Analysis of formal randomness in a chaotic random number generator by Johansson, A.J.

“…Sampled chaotic oscillators are promising structures for generating cryptographically secure random numbers. In this paper they are formally analyzed according…”
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Using simple force feedback mechanisms as haptic visualization tools by Johansson, A.J., Linde, J.

“…Force feedback (FF) is a technology which is very interesting in the context of human machine interfaces. Thus it is usable as a haptic interface, which makes…”
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Random number generation by chaotic double scroll oscillator on chip by Johansson, A.J., Floberg, H.

“…Generation of good non-repeatable and non-predictable random number sequences is of increasing importance, both in security applications and in simulations. A…”
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On-line fermentation process monitoring of carbohydrates and ethanol using tangential-flow filtration and column liquid chromatography by Buttler, Torbjoern, Johansson, Kristina A. J, Gorton, Lo G. O, Marko-Varga, Gyorgy A

“…A fully automated on-line system for the unattended monitoring of bioprocesses is described in which a discontinuous sampling mode is developed for…”
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