Olayinka Adigun

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An essential requirement for the establishment of a scaleable and interoperable distributed e-Healthcare information infrastructure is the development of an architectural framework that can support integration of diverse e-Healthcare services. Usually, the information infrastructure is modular, component-based and enables services to be deployed on(More)
BACKGROUND Halitosis is a recognized problem in dental practice. Some individuals have the belief that they have offensive mouth odour which neither the dental clinician nor any other person can perceive. This condition is known as delusional halitosis. Delusional halitosis can be classified as either Pseudo halitosis or Halitophobia depending on the(More)
The Internet is evolving towards a two-fold architecture that will comprise of traditional infrastructure based networks as well as emerging self organised autonomic peripheral networks. Such Internet peripheral networks are being termed as the Internet of things (IoT) whereby smart objects and devices will be connected together in a fully distributed(More)
The demand for higher data rates in wireless communication systems has become inevitable with the availability of diverse range of multimedia applications in mobile communications today. Multiple Input Multiple Output (MIMO) antennas is one of the technologies utilized to support the required higher data rates in wireless communications. However, energy(More)
This paper presents the Adaptive Spectrum Opportunity Access (ASOA) scheme. The proposed scheme greatly improves spectrum utilization and provides improved QoS for the secondary users. The secondary data delivery time is adapted in different spectrum opportunities through ASOA scheme based on the estimated collision rates in a sophisticated way. The(More)
Feedback information provides a leverage for improving the system performance of wireless communication systems. This paper investigates the effects that feedback information in terms of Channel Quality Information (CQI), Precoding Matrix Indicator (PMI) and Rank Indicator (RI) have on the energy efficiency of two popular Multiple Input Multiple Output(More)
Cooperative spectrum sensing is a key function in cognitive radio networks in order to provide unused spectrum access opportunities and mitigate the impact of interference to the primary networks. Cooperative sensing can incur additional cooperation overhead, increased energy consumption, extra sensing time and delay in heterogeneous networks. In this(More)