Abstract
This paper investigates the first-order characteristics
of dynamic off-body communications channels at 60 GHz. In
particular, we have studied signal propagation from a chest worn
millimeter wave transmitter as an adult male walked towards and
then away from a hypothetical base station. The mobile line of
sight (LOS) and non-LOS (NLOS) channel measurements have
been conducted in a diverse range of environments, including a
hallway, an open office, an anechoic chamber and an outdoor
car park. In this study we have decomposed the received signal
into its path loss, large-scale and small-scale fading components.
The large-scale fading has been modeled using the gamma
distribution while the Rice and Nakagami-m distributions have
been employed to describe the small-scale fading observed in the
LOS and NLOS channel conditions, respectively. The results have
shown that the estimated path loss exponents for the anechoic
chamber and car park environments were greater than those
obtained for the hallway and open office environments for both
the LOS and NLOS walking scenarios. Across all environments, it
was found that the gamma distribution provided an adequate fit
to the large-scale fading. Additionally, the Rice and Nakagami-m
distributions were found to well describe the small-scale fading
for the LOS and NLOS walking scenarios, respectively.
| Original language | English |
|---|---|
| Number of pages | 4 |
| Journal | IEEE Antennas and Wireless Propagation Letters |
| Early online date | 09 Feb 2017 |
| DOIs | |
| Publication status | Early online date - 09 Feb 2017 |