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This letter reports the shadowing effects of a human body on dynamic ultrawideband on-body radio links. A vector network analyzer is used to sweep the 3–5-GHz frequency band in an anechoic chamber. The sweep time is set fast enough to fulfill the channel coherence time requirements. This enables the data analysis to be performed in time domain by examining the corresponding channel impulse responses...
A new trend in developing wireless sensors consists in using wearable wireless sensors to monitor human vital parameters, activities and movements. Characterizing the radio channel is an important issue to design a suitable communication system, especially when the propagating medium is the human body. To address this problem, on body measurements along and around the torso were performed. Two path...
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