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The κ and μ Distribution Applied to the Analysis of Fading in Body to Body Communication Channels for Fire and Rescue Personnel
In this letter, we perform a novel characterization of the fading experienced in body to body communications channels
for fire and rescue personnel using the recently proposed κ-μ distribution.
A transmitter positioned on the lead fire person and four strategically placed, time-synchronized 2.45-GHz receivers
situated on the protective helmet and shoulders of another team member allowed small-scale signal variation to be recorded while a rescue team of four persons performed a building sweep and
search type operation. A general κ-μ model with parameters κ = 2.31 and μ = 1.19 was obtained using maximum likelihood
estimation and shown to provide a good fit to measured data.
Level crossing rates for these channels are also presented.
Key words: TLY-3, wireless bodyworn antennas, bodyworn channel, κ-μ distribution, wireless personal area networks, WBAN
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