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2013-01-16
An Advanced UWB Channel Model for Body-Centric Wireless Networks
By
Progress In Electromagnetics Research, Vol. 136, 79-99, 2013
Abstract
This paper presents a novel ultra wideband (UWB) channel model in the 3-10 GHz range for body-centric wireless communications. The tests are performed in both indoor anechoic chamber environments, addressing on-body and off-body propagation scenarios. The body channel model is extracted by using a single spatial grid over all the body, and by distinguishing between LOS and NLOS condition. The large number and the uniform placement of the receiver locations attempt a representation of the body propagation links more comprehensive than previously published models. The statistical reliability of the model is investigated by applying jointly the Kolmogorov-Smirnov and the Akaike criteria. The analysis suggested that the Lognormal model fits the channel amplitude distributions with a percentage ≥ 64%. The on-body indoor channel amplitudes are modeled with a stochastic terms of about 4-5 dB higher than previously published models. Finally, a Negative-Binomial and Inverse Gaussian distribution are used to model the expected number of paths and inter-arrival time, respectively. Based on the results presented in this paper, clear recommendations are given with regards to the optimum statistical distribution of an accurate UWB body-centric radio channel modeling.
Citation
Rafaele Di Bari Qammer Hussain Abbasi Akram Alomainy Yang Hao , "An Advanced UWB Channel Model for Body-Centric Wireless Networks," Progress In Electromagnetics Research, Vol. 136, 79-99, 2013.
doi:10.2528/PIER12082919
http://www.jpier.org/PIER/pier.php?paper=12082919
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