Temporal autocorrelation of the dynamic on-body radio channel is characterised empirically and theoretically based on measurements. The channel coherence time is found to be approximately 20 to 70 ms for a human subject either walking or running. Using a Weibull distribution approximation to the channel taps there is a fair match between empirical and theoretical results for large correlation coefficients.
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Smith et al. (2009) studied this question.
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