In this paper, 4-year precipitation data obtained from Tropical Rain Measuring Mission-Precipitat... more In this paper, 4-year precipitation data obtained from Tropical Rain Measuring Mission-Precipitation Radar (TRMM-PR) satellite were processed and used to determine the distribution of rain height based on 00C isotherm height over Durban in South Africa. The results show that there is a strong variation of bright-band height over the years of observation and will mostly lie between 3639 m and 4197 m above mean sea level. The observed rain height lies between 4517 m and 4803 m. Comparison of the observed results show that the International Telecommunication Union - Recommendation (ITU-R) P.839 recommended values were underestimated. Thus, the specific attenuation values are determined using ITU-R P.618 by incorporating the determined rain height for the location of Durban. It is noticed that the differences between the estimated attenuation based on the measured rain height and the established ITU-R rain height can be as high as 8 dB at Ka band. Thus, recommending using the physical information about rain height derived from the local databases to improve in the rain attenuation prediction accuracy for this region.
International Journal of Antennas and Propagation, 2015
As technology advances and more demands are on satellite services, rain-induced attenuation still... more As technology advances and more demands are on satellite services, rain-induced attenuation still creates one of the most damaging effects of the atmosphere on the quality of radio communication signals, especially those operating above 10 GHz. System designers therefore require statistical information on rain-induced attenuation over the coverage area in order to determine the appropriate transmitter and receiver characteristics to be adopted. This paper presents results on the time-varying rain characterization and diurnal variation of slant path rain attenuation in the Ka-band frequency simulated with synthetic storm techniques over a subtropical location in South Africa using 10-year rain rate time-series data. The analysis is based on the CDF of one-minute rain rate; time-series seasonal variation of rain rate observed over four time intervals: 00:00–06:00, 06:00–12:00, 12:00–18:00, and 18:00–24:00; diurnal fades margin; and diurnal variation of rain attenuation. Comparison was...
International Journal on Cybernetics & Informatics
The adoption of digital transformation was not expressed in building an African face shape classi... more The adoption of digital transformation was not expressed in building an African face shape classifier. In this paper, an approach is presented that uses k-means to classify African women images. African women rely on beauty standards recommendations, personal preference, or the newest trends in hairstyles to decide on the appropriate hairstyle for them. In this paper, an approach is presented that uses K-means clustering to classify African women's images. In order to identify potential facial clusters, Haarcascade is used for feature-based training, and K-means clustering is applied for image classification.
Business Model Innovation with intelligent analytics in Small Medium Enterprises , 2022
Call for Chapters Proposals Submission Deadline: April 30, 2022, Complete Chapters Due: July 30 2... more Call for Chapters Proposals Submission Deadline: April 30, 2022, Complete Chapters Due: July 30 2022
This book intends to research the required paradigm shift that will enable SMEs to embed advanced technologies such as Intelligent Analytics and data science to innovate business models. Such that SMEs become part of the ecosystem competing with business models that may lead to sustainability. The book intends to research SME Business model innovation with Intelligent Analytics and data science from the essential perspectives of applications, potential threats, opportunities, processes and tools. As well as the roles of these emerging technologies may play in supporting SMEs to navigate digital transformation, focusing on the following aspects;
The emergence of a vast range of communication devices running on different types of technology h... more The emergence of a vast range of communication devices running on different types of technology has made convergence of technology become the order of the day. This revolution observed in communications technology has resulted in a pressing need for larger bandwidth, ...
In this paper, 4-year precipitation data obtained from Tropical Rain Measuring Mission-Precipitat... more In this paper, 4-year precipitation data obtained from Tropical Rain Measuring Mission-Precipitation Radar (TRMM-PR) satellite were processed and used to determine the distribution of rain height based on 00C isotherm height over Durban in South Africa. The results show that there is a strong variation of bright-band height over the years of observation and will mostly lie between 3639 m and 4197 m above mean sea level. The observed rain height lies between 4517 m and 4803 m. Comparison of the observed results show that the International Telecommunication Union - Recommendation (ITU-R) P.839 recommended values were underestimated. Thus, the specific attenuation values are determined using ITU-R P.618 by incorporating the determined rain height for the location of Durban. It is noticed that the differences between the estimated attenuation based on the measured rain height and the established ITU-R rain height can be as high as 8 dB at Ka band. Thus, recommending using the physical information about rain height derived from the local databases to improve in the rain attenuation prediction accuracy for this region.
International Journal of Antennas and Propagation, 2015
As technology advances and more demands are on satellite services, rain-induced attenuation still... more As technology advances and more demands are on satellite services, rain-induced attenuation still creates one of the most damaging effects of the atmosphere on the quality of radio communication signals, especially those operating above 10 GHz. System designers therefore require statistical information on rain-induced attenuation over the coverage area in order to determine the appropriate transmitter and receiver characteristics to be adopted. This paper presents results on the time-varying rain characterization and diurnal variation of slant path rain attenuation in the Ka-band frequency simulated with synthetic storm techniques over a subtropical location in South Africa using 10-year rain rate time-series data. The analysis is based on the CDF of one-minute rain rate; time-series seasonal variation of rain rate observed over four time intervals: 00:00–06:00, 06:00–12:00, 12:00–18:00, and 18:00–24:00; diurnal fades margin; and diurnal variation of rain attenuation. Comparison was...
International Journal on Cybernetics & Informatics
The adoption of digital transformation was not expressed in building an African face shape classi... more The adoption of digital transformation was not expressed in building an African face shape classifier. In this paper, an approach is presented that uses k-means to classify African women images. African women rely on beauty standards recommendations, personal preference, or the newest trends in hairstyles to decide on the appropriate hairstyle for them. In this paper, an approach is presented that uses K-means clustering to classify African women's images. In order to identify potential facial clusters, Haarcascade is used for feature-based training, and K-means clustering is applied for image classification.
Business Model Innovation with intelligent analytics in Small Medium Enterprises , 2022
Call for Chapters Proposals Submission Deadline: April 30, 2022, Complete Chapters Due: July 30 2... more Call for Chapters Proposals Submission Deadline: April 30, 2022, Complete Chapters Due: July 30 2022
This book intends to research the required paradigm shift that will enable SMEs to embed advanced technologies such as Intelligent Analytics and data science to innovate business models. Such that SMEs become part of the ecosystem competing with business models that may lead to sustainability. The book intends to research SME Business model innovation with Intelligent Analytics and data science from the essential perspectives of applications, potential threats, opportunities, processes and tools. As well as the roles of these emerging technologies may play in supporting SMEs to navigate digital transformation, focusing on the following aspects;
The emergence of a vast range of communication devices running on different types of technology h... more The emergence of a vast range of communication devices running on different types of technology has made convergence of technology become the order of the day. This revolution observed in communications technology has resulted in a pressing need for larger bandwidth, ...
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Papers by Owolawi Pius Adewale
This book intends to research the required paradigm shift that will enable SMEs to embed advanced technologies such as Intelligent Analytics and data science to innovate business models. Such that SMEs become part of the ecosystem competing with business models that may lead to sustainability. The book intends to research SME Business model innovation with Intelligent Analytics and data science from the essential perspectives of applications, potential threats, opportunities, processes and tools. As well as the roles of these emerging technologies may play in supporting SMEs to navigate digital transformation, focusing on the following aspects;
This book intends to research the required paradigm shift that will enable SMEs to embed advanced technologies such as Intelligent Analytics and data science to innovate business models. Such that SMEs become part of the ecosystem competing with business models that may lead to sustainability. The book intends to research SME Business model innovation with Intelligent Analytics and data science from the essential perspectives of applications, potential threats, opportunities, processes and tools. As well as the roles of these emerging technologies may play in supporting SMEs to navigate digital transformation, focusing on the following aspects;