Influence of the Human Motion on Wide-Band Characteristics of the 60 GHz IRC

This paper is mainly concerned about the propagation measurements in the presence of the human activity for a wireless channel. By means of an appropriate method, the obstruction phenomenon due to human bodies and their activities which cause attenuation and coherence bandwidth are characterized. For such kind of experiment the test has been taken with a 60 GHz channel and series of 40 minutes long measurements of the channel impulse response have been recorded with a sampling period of 1.6 ms, for total 20 hours. For high data rate communication channel if the direct path is shadowed by a person, the attenuation and propagation delay definitely increases and this will eventually increases as the number of people increases. And thus the author of the original idea has to say that \´globally, the channel is "unavailable" for about 1% or 2% of the time in the presence of one to five persons.