In this paper, we investigate the characteristics of the composite fading observed in non-line-of-sight (NLOS) off-body communications channels using the η-μ/inverse gamma distribution. We use a number of different datasets obtained from NLOS off-body measurements which have been performed in a range of different environments at 5.8 GHz and 60 GHz. In all cases, the bodyworn node was positioned on the front-central chest region of an adult male. It is shown that the η-μ/inverse gamma model provides an excellent fit to the measurement data for all of the considered cases. Using the Akaike information criterion (AIC), we have compared the η-μ/inverse gamma model with other composite and non-composite fading models associated with the NLOS channel conditions. The AIC results confirm that the η-μ/inverse gamma model was the most likely model to have been responsible for generating the channel data from the set of candidates which were considered.
|Title of host publication||2017 11th European Conference on Antennas and Propagation (EUCAP)|
|Number of pages||5|
|Publication status||Published - 18 May 2017|
|Event||11th European Conference on Antennas and Propagation - Paris, France|
Duration: 19 Mar 2017 → 24 Mar 2017
|Conference||11th European Conference on Antennas and Propagation|
|Abbreviated title||EUCAP 2017|
|Period||19/03/17 → 24/03/17|
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- Fading Channels
- Antenna Radiation Patterns
- Body Area Networks
- Gamma Distribution
- NLOS off-body communication