TY - GEN
T1 - Behaviour of Lognormally-Distributed Differential Functions of Rain Drop Profiles over Radio Links
AU - Alonge, Akintunde
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - Rainfall attenuation is undoubtedly one of the factors to be considered in the deployment of outdoor 5G services as the system rollout becomes inevitable. In this paper, the rainfall subject is approached from the microstructure of rain drop sizes, by utilizing derivatives of the Type II Lognormal Drop Size Distribution (DSD) model. DSD measurements from three African locations-Durban, South Africa (29o52'S, 30o58'E), Butare, Rwanda (2o36'S, 29o44'E) and Ile-Ife, Nigeria (7o31'N, 4o31'E)-are investigated as first order and second order Differential Equations (DEs). General expressions representing these DEs are developed and applied to derivative scenarios for different rainfall rate categories: 20 mm/h, 60 mm/h and 110 mm/h. These scenarios represent shower events, thunderstorm events and severe thunderstorm events. Results obtained show that a good overview of DSD variations is realized from these derivatives, when compared with the measured diameter spectrum. The compared DSD characteristics at these selected locations offer an interesting perspective on the behaviour of lognormal distributions at these selected locations.
AB - Rainfall attenuation is undoubtedly one of the factors to be considered in the deployment of outdoor 5G services as the system rollout becomes inevitable. In this paper, the rainfall subject is approached from the microstructure of rain drop sizes, by utilizing derivatives of the Type II Lognormal Drop Size Distribution (DSD) model. DSD measurements from three African locations-Durban, South Africa (29o52'S, 30o58'E), Butare, Rwanda (2o36'S, 29o44'E) and Ile-Ife, Nigeria (7o31'N, 4o31'E)-are investigated as first order and second order Differential Equations (DEs). General expressions representing these DEs are developed and applied to derivative scenarios for different rainfall rate categories: 20 mm/h, 60 mm/h and 110 mm/h. These scenarios represent shower events, thunderstorm events and severe thunderstorm events. Results obtained show that a good overview of DSD variations is realized from these derivatives, when compared with the measured diameter spectrum. The compared DSD characteristics at these selected locations offer an interesting perspective on the behaviour of lognormal distributions at these selected locations.
KW - Radio propagation
KW - differential equations
KW - lognormal distribution
KW - rain drop size distribution
KW - rainfall attenuation
UR - http://www.scopus.com/inward/record.url?scp=85073227370&partnerID=8YFLogxK
U2 - 10.1109/AFRICA.2019.8843407
DO - 10.1109/AFRICA.2019.8843407
M3 - Conference contribution
AN - SCOPUS:85073227370
T3 - 2019 IEEE 2nd Wireless Africa Conference, WAC 2019 - Proceedings
BT - 2019 IEEE 2nd Wireless Africa Conference, WAC 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE Wireless Africa Conference, WAC 2019
Y2 - 18 August 2019 through 20 August 2019
ER -