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In this letter, measurement results of land-to-ship offshore wireless channels are presented. Large-scale and small-scale fading characteristics of 2.4 GHz frequency band are investigated by implementing narrowband channel measurement system between quay and a sailing coast patrol boat. For large-scale fading, free space path loss model, ITU-R P.1546 model, and two-ray model are compared with the...
Ultra-wideband (UWB) indoor channel characteristics which incorporate human body effects are analyzed. Channel impulse responses (CIRs) are measured in the frequency band of 3 GHz to 4.6 GHz in four different classrooms. For each measurement site, the proportion of occupied seats is changed to observe the effect of the number of people on the wireless propagation channel. First, path-loss exponents...
In this paper, shadow fading (SF) in an indoor multipath environment is measured and the spatial correlation of SF is modeled statistically. To effectively extract SF from the measured field strength, we use frequency averaging (FA) method instead of spatial averaging (SA) method which has generally been used. SF is modeled as a random variable with a log-normal distribution. The spatial correlation...
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