Understanding on-body fading channels at 2.45 GHz using measurements based on user state and environment

This paper discusses the nature of small scale narrowband fading in on-body propagation channels based on a systematic experimental campaign at 2.45 GHz. In particular, we use the Nakagami-m distribution to provide insight into the effect of both user state and local environment on channel characteristics. Nakagami-m parameters were much greater than 1 when the user was stationary, irrespective of local surroundings. However, fading conditions degraded significantly for mobile channels and a general Nakagami model (m = 1.44, Omega = 1.27) provided a good description of on-body links in an open office area that was representative of many common indoor environments.