TY - GEN
T1 - Specific Rain Attenuation Derived from a Gaussian Mixture Model for Rainfall Drop Size Distribution
AU - Ekerete, K'ufre-mfon E.
AU - Hunt, Francis
AU - Jeffery, Judith L.
AU - Otung, Ifiok
PY - 2017/3/24
Y1 - 2017/3/24
N2 - Precipitation, particularly rain affects the millimetre and sub-millimetre frequencies more severely than it does for lower frequencies in the Earth-space path. There is therefore a need for accurate models that will enable the rainfall drop size distribution (DSD) to be better predicted for better planning and improved service delivery. Using data captured at Chilbolton Observatory, this paper looks at modelling the DSD using the Gaussian Mixture Model (GMM), and attempts to predict the specific attenuation due to rain based on this model and compares the result with other well-established statistical models (lognormal and gamma). Results show that specific attenuation tends to increase with the drop sizes, and the smaller drops contribute little to the overall attenuation experienced by signals. Specific attenuation was computed based on several standard statistical distributions, and compared with that derived from the ITU recommendation.
AB - Precipitation, particularly rain affects the millimetre and sub-millimetre frequencies more severely than it does for lower frequencies in the Earth-space path. There is therefore a need for accurate models that will enable the rainfall drop size distribution (DSD) to be better predicted for better planning and improved service delivery. Using data captured at Chilbolton Observatory, this paper looks at modelling the DSD using the Gaussian Mixture Model (GMM), and attempts to predict the specific attenuation due to rain based on this model and compares the result with other well-established statistical models (lognormal and gamma). Results show that specific attenuation tends to increase with the drop sizes, and the smaller drops contribute little to the overall attenuation experienced by signals. Specific attenuation was computed based on several standard statistical distributions, and compared with that derived from the ITU recommendation.
KW - THeoretical modelling
KW - Space and satellite communications
KW - Estimation and forecasting
KW - Probability distributions
KW - rainfall drop size distribution (DSD)
KW - Gaussian Mixture Model (GMM)
KW - Specific attenuation
U2 - 10.1007/978-3-319-53850-1_17
DO - 10.1007/978-3-319-53850-1_17
M3 - Conference contribution
SN - 9783319538495
VL - 186 LNICST
T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
SP - 156
EP - 166
BT - Wireless and Satellite Systems
PB - Springer
T2 - 8th International Conference on Wireless and Satellite Systems, WiSATS 2016
Y2 - 19 September 2016 through 20 September 2016
ER -