The growing use of unlicensed wireless systems has spurred interest in
the 2.4-GHz ISM band. In order to facilitate the design of such syste
ms, measurements of the pulse response characteristics have been made
inside commercial buildings. From the measured pulse response, the sta
tistical properties of the amplitude variation for individual pulses w
as determined, in addition to path loss, mean excess delay, root mean
square (rms) delay spread, and the coherence bandwidth of the indoor c
hannel.