Title :
Are Narrowband Wireless On-Body Networks Wide-Sense Stationary?
Author :
Chaganti, Vasanta ; Hanlen, Leif ; Smith, D.
Author_Institution :
Australian Nat. Univ., Canberra, ACT, Australia
Abstract :
Using narrowband wireless On-Body Area Network (BAN) channel measurements (50 million data points) in diverse environments with multiple subjects, we examine the stationarity of the channel. Wide-Sense Stationarity (WSS) tests and power spectral estimates show that the channel has a 50% probability of stationarity at 500 ms and the probability rapidly diminishes thereafter. We show that non-stationarity is inherent to on-body BANs and not an artifact of experimental setup.
Keywords :
body area networks; body sensor networks; channel estimation; probability; spectral analysis; WSS test; channel measurement; diverse environments; narrowband wireless on-body area network; power spectral estimation; probability; wide sense stationarity; Analysis of variance; Biological system modeling; Fading; Narrowband; Probability; Wireless communication; Wireless sensor networks; Body sensor networks; fading; narrowband; statistical distributions;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2014.031914.130303
