Percy Okae

Percy Okae
University of Ghana | Legon · Department of Computer Engineering

Doctor of Philosophy

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14
Publications
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Publications

Publications (14)
Article
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The FM transmitter bug is a very sensitive miniature FM microphone transmitter that can be constructed from basic electronic components such as resistors, capacitors, inductors, and diodes. Basically, it serves as a detective device to covertly monitor conversations and can be considered as a surveillance device since it is hidden from sight to avo...
Article
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Though the Internet has been around for quite a few decades, the continent of Africa had indisputably lagged behind the rest of the world rather abysmally in the past due to very poor infrastructural development. However, today the tottering continent of Africa is making a gradual climb onto the information superhighway which has reduced our world...
Article
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As student populations keep soaring on university campuses, the management of residential housing facilities becomes challenging. To access available rooms and their associated costs, the deployment of an automated residential housing system via the WWW, will ease some of these bottlenecks of prospective applicants. It was therefore thought appropr...
Article
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Facial expression recognition (FER) has numerous applications in computer security, neuroscience, psychology, and engineering. Owing to its non-intrusiveness, it is considered a useful technology for combating crime. However, FER is plagued with several challenges, the most serious of which is its poor prediction accuracy in severe head poses. The...
Article
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Under normal circumstances, products on display in shops and open markets are expected to have passed through quality control checks at a country's entry points. However, this is usually not the case as people are able to smuggle substandard goods through the ports of entry into various countries either with the connivance of immigration officers o...
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This study concentrated on designing, developing, and implementing a decision support system (DSS) to track the maintenance schedules of an organization such as a university's fleet of vehicles. The schedule takes into account the mobile and immobile vehicles at any point in time, the vehicles due for scheduled maintenance, vehicles due for insuran...
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This study sought to undertake a statistical and computational study of the factors behind the drastic fall in the number of patrons frequenting Internet cafés. The study used data gathered from business owners of selected cafés in Ghana, a typical Third World country, where infrastructure deficit meant the broader majority used Internet services s...
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Over the past decade, the use of smartphones has become the norm rather than the exception among all the income groups of people around most parts of the World. Foremost among the reasons why people invest substantial amounts of money to purchase a smartphone, is mainly to employ its computing powers to facilitate their day-today routines as well a...
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This paper investigated the factors responsible for the growth of Internet usage on the African continent. The principal finding was that increasing growth of Internet usage is also down to one singular factor: mobile communications technology. The proliferation of mobile phone usage in Africa has resulted in the sustained rise in Internet usage re...
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This paper adopts the concepts of observatory and competitive intelligence (CI) to model a system that will generate better insights for decision-makers in the solid waste industry. The first part of this work is to design and develop a data warehouse (DWH) of solid waste statistics using data assembled from disparate sources. Our methodology of de...
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Although, the Internet had existed for many decades as the ARPANET since 1969, it was only after 1991 when the British MIT professor, Sir Tim Beners-Lee, invented the World Wide Web (WWW), which also runs on the Internet that the Internet attained the heights it has to this end. This major technological breakthrough helped cement the Internet in th...
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Although cellular communications have existed in Ghana, West Africa, since 1992, it was not until July 7, 2011 that mobile phone number porting took off. Thus for the almost 20 years that cellular services existed without number porting, subscribers in Ghana endured the inconvenience of having to change their numbers entirely anytime they felt diss...
Article
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Satellite communications have had a significant impact on wireless communication services owing to its versatility in comparison to its terrestrial cousins. In today's wireless mobile world, mobile satellite services (MSS) are indispensable and are used side by side with the very popular cellular services we have all become so accustomed to. If we...

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