Fading Characteristics for Dynamic Body-to-Body Channels in Indoor and Outdoor Environments

摘要

This paper presents an analysis of the fading characteristics in dynamic body-to-body channels, based on measurements performed at 2.45 GHz in indoor and outdoor environments. The statistical analysis of the small- and large-scale fading shows that the Nakagami Distribution is the best model for the former and the Log-Normal one for the latter. An important influence of body shadowing on the small-scale fading characteristics is observed, where the average amount of fading (fading merit) for the case when either of the users is obstructing the direct path is up to 2.56 times higher than when the direct path is unobstructed. The influence of the environment is also important, where small-scale fading is more severe in the indoor environment than in the outdoor one; 1.88 times higher average amount of fading and 3.81 dB lower K-factor are observed.