ABSTRACT With recent advances in wireless technology, users of wireless network now expect quality of service and performance comparable to what is available in fixed networks. The IEEE 802.11e Medium Access Control (MAC) is an emerging supplement to the IEEE 802.11 Wireless Local Area Network (WLAN) standard that supports Quality-of-Service (QoS) requirements of both data and real-time applications. The IEEE802.11e MAC is based on both centrally-controlled and contention-based channel acce...
Abstract The transmission distance of any WDM fiber-optic communication system is eventually limited by fiber losses and it was introduced from fiber attenuation, connectors, splices, dispersion, interference and bending causes the power reduction in optical fiber communication. This loss limitation was mostly overcome using tunable optical filters, devices in which the desired channel is to be selected at the receiver with negligible crosstalk and small insertion loss. In this thesis diffe...
ABSTRACT Asynchronous Transfer Mode (ATM) technology is the transfer mode for implementing a Broadband-Integrated Services Digital Network (B-ISDN). ATM defines multiplexing and switching techniques for broadband signals. Synchronous Optical Network (SONET) is employed in the B-ISDN backbone. The main objective of an ATM is to guarantee Quality of Service (QoS) in transfer of cell streams across networks. This technology recommended as the transport vehicle for the B-ISDN offers a great fle...
ABSTRACT The quality of satellite communication link can be seriously affected by variable climatic phenomena such as rain, gases, and scintillation. As the frequency of operation increases 8 beyond 10GHz, the effect of rain becomes very severe with the growing need for high bandwidth frequencies such as frequencies in the Ku-band and Ka- band hence the need for better fade mitigation becomes necessary. In order to identify the appropriate rain fade mitigation technique, there is need to qu...
Abstract The utilization of solar energy is most concerned source in energy sector nowadays. The building integrated photovoltaic solar panels are increasingly constructed in dense urban areas because they brought many advantages to the society along with energy saving features. However, at the same time, they raise tensions in capital investments and overall returns. In this project, the BIPV systemis integrated on a multi-stair building consists of 6 floors, this building is located in...
The main content of this project is to mathematically use the method of bilinear transformation to design a digital bandpass IIR filter, which will cut off frequencies below 20Hz and above 500Hz, since in electromyography the dominant frequencies for myopic signals lie between the frequency range of 20Hz and 500Hz.
ABSTRACT It would seem that hearing is a secondrate sense when compared to vision in our visually oriented modern society. People with hearing loss delay a decision to get hearing help because they are unaware of the fact that receiving early treatment for hearing loss has the potential to literally transform their lives. Research by the National Council on the Aging on more than 2,000 people with hearing loss demonstrated t...
ABSTRACT A web-based information management system for national health insurance scheme(NHIS) will assist the body to have an online registration of people, health maintence organizations (HMOs), accredited heath care providers, etc. Looking at the Nigerian population, access to health insurance is denied to a certain category of people as a result of not being a government worker or not privileged to be duly informed on the operation of the scheme and how to enroll Knowing that Health insura...
ABSTRACT The broadcasting stations in Nigeria often encounter sudden failures, which results in loss of signal that causes the station to experience down-time. Causes of the failures could be traced to the issues that range from erratic power supply to degradation in the studio equipment. Each failure and its consequent down-time influences the reliability of the station. In our environment (Nigeria) reliability does not only depend on the established parameters, instead it includes parameter...
Abstract: Nuclear radiation protection is crucial for future development in the field of Nuclear energy generation. This work categorizes the various types of radiation protection. It is a comprehensive review of nuclear radiation protection.
ABSTRACT: Presentation slides for the course project on the topic Graphene-based surface plasmon polariton for plasmonic waveguides and devices. Throughout the project the used of FDTD simulations were conducted for the report.
ABSTRACT: The inconsistency present in Transmission line tends to have a cascading collapse and different types of failures in the transmission line of a power system which impact the power transfer capability of the line. In this paper we used MATLAB coding to plot the real power and reactive power with voltage. We want to predict what happens to the stability of a power system before a cascading collapse. Note: The MATLAB code was intentionally added to this work to serve as a base for...
ABSTRACT: Hemoglobin concentration sensors are created in this study using a row of half-cylindrical rods. The suggested structures are capable of accurately detecting blood sample hemoglobin concentration. Two different topologies based on graphene-plasmonic couples are proposed and explored and a comprehensive review is included in this work. The proposed structures are composed of layers of graphene SiO2, Au, and Ag. Multiple plates and cylindrical-shaped graphene layers are added to the ...
A beautiful process of work which is capable of turning the normal moment into a lifelong memory
Solar simulators are major characterization tools yielding the solar modules.They are used in photovoltaic industries and academia for researches in photochemistry, biosensors, sunscreen testing and soon. Solar simulators have been facing many challenges in in terms of construction and characterization as well as in their being used to characterize other devices. In this article problems faced by engineers and scientists in developing, and characterizing solar simu...