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This paper presents a new methodology of an Over-the-Air (OTA) testing using an arm-swinging dynamic phantom applied to wireless Body Area Network (BAN) systems. The phantom has unique features, in that swinging of the right and left arms and the direction and speed of swing can be controlled independently, leading to excellent capability for replicating the variety of natural walking and running...
This paper presents a new methodology for BAN-OTA testing using a fading emulator with a dynamic phantom. The key to the success of the proposed apparatus is to provide the fading emulator with a proper K-factor that can represent an actual propagation environment under consideration. Hence, experiments for getting the knowledge of K-factor in indoor environments have been carried out. It is revealed...
This paper presents analytical results on the BER degradation of QPSK signals for BAN diversity antennas for the case where the combined outcome of shadowing and multipath fading emerge simultaneously and statistical model of human walking motion is employed in the analysis. The results show that a probability of a low signal level is higher than that for the Rayleigh distribution owing to shadowing...
This paper presents a new methodology for BAN-OTA Testing using a developed fading emulator with a dynamic phantom. The key to the success of the proposed apparatus is to provide the fading emulator with a proper K-factor that can represent an actual propagation environment under consideration. Firstly, a configuration of the developed fading emulator used for BAN-OTA Testing is shown. Based on the...
This paper presents a radio frequency (RF) controlled spatial fading emulator for the evaluation of a handset MIMO antenna. The RF-controlled fading emulator can control RF signals directly in the spatial domain to produce an accurate radio propagation channel model, which includes the uniform and non-uniform angular power spectra (APS) in the horizontal plane. Fading correlation and MIMO channel...
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