http://repository.fuoye.edu.ng:80/handle/123456789/63 2026-04-16T06:39:04Z 2026-04-16T06:39:04Z OKOLI, GABRIEL CHUKWU BABATUNDE, AYODEJI EMMANUEL LEMOHA, PEACE CHINONYE LAWAL, KAMILU OLUWAFEMI ATASIE, INNOCENT CHIBUEZE VERE, SHABA SUPERVISED BY, PROF. C.J AGUNWAMBA http://repository.fuoye.edu.ng:80/handle/123456789/1067 2015-09-23T10:56:54Z 2014-11-01T00:00:00Z

Title: SCENARIO INFRASTRUCTURE PLANNING FOR SUSTAINABLE LIVELIHOOD Authors: OKOLI, GABRIEL CHUKWU; BABATUNDE, AYODEJI EMMANUEL; LEMOHA, PEACE CHINONYE; LAWAL, KAMILU OLUWAFEMI; ATASIE, INNOCENT CHIBUEZE; VERE, SHABA; SUPERVISED BY, PROF. C.J AGUNWAMBA Abstract: Infrastructure development and economic growth are mutually reinforcing, as infrastructure development plays a vital role in wealth creation. Infrastructure is at the core of good governance and in turn impacts the standard of living of the people. The condition of infrastructure planning in Nigeria is in a deplorable state and hence good and sustainable infrastructure planning is needed in Nigeria not only to serve as a catalyst for economic growth. In this project scenario infrastructure planning for sustainable livelihood, the current situation of infrastructure in Nigeria was analysed and ways of tackling the challenges identified were projected. Different plausible approaches were analysed using social, technology, economy, environment and political (STEEP) categories of infrastructure as the object for creating planning scenarios. Finally, two different scenarios, 1 and 2 were used applying C54 and C53 respectively for the purpose of selecting the best assets combination to plan infrastructure for sustainable livelihood. Description: THIS PAPER WAS PRESENTED DURING THE PROJECT EXHIBITION SECTION OF THE 2014 WORLD ENGINEERING CONFERENCE ON SUSTAINABLE INFRASTRUCTURE.

2014-11-01T00:00:00Z Ezea, Hilary Okwor, Candidus O. http://repository.fuoye.edu.ng:80/handle/123456789/1028 2015-09-22T13:03:41Z 2015-11-10T00:00:00Z

Title: The Economic Implications of Burstiness of Cell Arrival Processes in Network Design Authors: Ezea, Hilary; Okwor, Candidus O. Abstract: Abstract: Burstiness has a great influence on network architectures as well as network dimensioning. Hence, the knowledge of the different traffic models goes a long way in helping the network designer to make good choices concerning end buffer parameters, protocol selection as well as functional specifications, and QoS parameters. This paper takes a comparison of three traffic models- the Interrupted Poisson Process, the Interrupted Bernuolli Process and the ON-OFF traffic model with constant distribution. The comparison is based on buffer occupancy, cell delay and utilization; with the aim of investigating the economic implications of using these traffic models. The results of the simulation show that the ON-OFF (Constant distribution) and the IPP have similar impacts which are far better than that of the IBP

2015-11-10T00:00:00Z Okomba, Nnamdi S Okwor, Candidus O. Adesina, Adegboye Mutiu http://repository.fuoye.edu.ng:80/handle/123456789/1017 2015-09-22T12:49:49Z 2015-07-10T00:00:00Z

Title: Survey of Technical Progress in Speech Recognition by Machine over Few Years of Research Authors: Okomba, Nnamdi S; Okwor, Candidus O.; Adesina, Adegboye Mutiu Abstract: Abstract: This paper reviews some of various research carried out over the last decade in the area of Automatic Speech Recognition (ASR) and discusses the major themes and advance made in the last decade of research, in order to show the outlook of technology and an appreciation of the fundamental progress that has been achieved in this weighty area of speech communication. Over period of research and development, the accuracy of automatic speech recognition remains one of the important research challenges such as variation of the context, environmental condition, speaker’s variation and poor-quality audio. The design of speech recognition requires careful attention to the following issue: Definition of various types of speech classes, speech representation, techniques, database and performance evaluation. The history, challenges of speech recognition system and various techniques to solve these challenges constructed by various research works have been presented in a chronological order. The objective of this paper is to compare and summarize well know approaches used in various steps of speech recognition system.

2015-07-10T00:00:00Z Omodunbi, Bolaji Arulogun, O.T Emuoyibofarhe, J.O http://repository.fuoye.edu.ng:80/handle/123456789/1015 2015-09-22T12:49:00Z 2013-01-01T00:00:00Z

Title: A review of Energy Conservation in Wireless sensors Networks Authors: Omodunbi, Bolaji; Arulogun, O.T; Emuoyibofarhe, J.O Abstract: In wireless sensor networks, energy efficiency plays a major role to determine the lifetime of the network. The network is usually powered by a battery which is hard to recharge. Hence, one major challenge in wireless sensor networks is the issue of how to extend the lifetime of sensors to improve the efficiency. In order to reduce the rate at which the network consumes energy, researchers have come up with energy conservation techniques, schemes and protocols to solve the problem. This paper presents a brief overview of wireless sensor networks, outlines some causes of its energy loss and some energy conservation schemes based on existing techniques used in solving the problem of power management.

2013-01-01T00:00:00Z Adeosun, Olajide Adeyanju, Ibrahim Omotosho, Oluyinka Folaranmi, Oluwatosin Ibrahim, Marufat http://repository.fuoye.edu.ng:80/handle/123456789/1012 2015-09-22T12:44:21Z 2015-01-01T00:00:00Z

Title: Simulation of a Fault Tolerant Mobile Telecom Network Authors: Adeosun, Olajide; Adeyanju, Ibrahim; Omotosho, Oluyinka; Folaranmi, Oluwatosin; Ibrahim, Marufat Abstract: The mobile telecom industry currently represent the fastest growing sector with emphasis on mobile data services. In general, the flexibility provided by mobility has satisfied users of current wireless networks, despite the extraordinary success of the cellular mobile telecommunications industry. However, the industry is still encountering various problems such as frequent call drops and lack of or inadequate service coverage areas. This paper discusses the simulation of a telecom network that is fault tolerant based on the failure scenarios examined. Two mobile networks were designed and simulated for fault tolerance. The first design is a mobile network connected directly to a SGSN (Serving GPRS Support Node) to serve as a non-fault tolerant mobile network. The second design adds a base station sub-system (BSS) into the network to form the fault tolerant design. Various parameters were used to measure the effectiveness of the designed networks including queuing delay, received power and the received throughput as the base station controller routes the packets from the mobile station to the SGSN and the packets from the SGSN to the receiving station. Our simulation results indicate that the addition of BSS increases the efficiency and the effectiveness of a mobile telecom network

2015-01-01T00:00:00Z Okomba, Nnamdi Okwor, Candidus Adegboye, Adesina http://repository.fuoye.edu.ng:80/handle/123456789/998 2015-09-22T12:29:03Z 2015-07-10T00:00:00Z

Title: Survey of Technical Progress in Speech Recognition by Machine over Few Years of Research Authors: Okomba, Nnamdi; Okwor, Candidus; Adegboye, Adesina Abstract: Abstract: This paper reviews some of various research carried out over the last decade in the area of Automatic Speech Recognition (ASR) and discusses the major themes and advance made in the last decade of research, in order to show the outlook of technology and an appreciation of the fundamental progress that has been achieved in this weighty area of speech communication. Over period of research and development, the accuracy of automatic speech recognition remains one of the important research challenges such as variation of the context, environmental condition, speaker’s variation and poor-quality audio. The design of speech recognition requires careful attention to the following issue: Definition of various types of speech classes, speech representation, techniques, database and performance evaluation. The history, challenges of speech recognition system and various techniques to solve these challenges constructed by various research works have been presented in a chronological order. The objective of this paper is to compare and summarize well know approaches used in various steps of speech recognition system. Keywords: Automatic Speech Recognition, Database, Feature extraction, Performance evaluation, Techniques

2015-07-10T00:00:00Z Adeyanju, Ibrahim Omotosho, Oluyinka Benjamen, Nathaniel Adegbola, Elizabeth http://repository.fuoye.edu.ng:80/handle/123456789/988 2015-09-22T12:11:55Z 2015-01-01T00:00:00Z

Title: Development of Micro-Controlled Multi-Powered Uninterruptible Power Supply System Authors: Adeyanju, Ibrahim; Omotosho, Oluyinka; Benjamen, Nathaniel; Adegbola, Elizabeth Abstract: This paper discusses the design and prototype implementation of a multi-powered uninterruptible power supply system using a microcontroller. The system consisted of three basic units: the battery charging unit, the automatic switching unit and the inverter unit. The battery charging unit has components such as AC power, solar panel, a battery and the charging circuitry. The automatic switching unit includes the micro-controller and MOSFET switches to regulate the charging from multiple sources as well as switching from the power supply from AC to battery and vice versa. The inverter unit includes the transformers and other power electronic components to convert DC to AC power. Voltage and current measurement of our power supply output indicate optimal performance within expectation. Also, the battery charged faster with AC than solar power. We intend to further explore the use of miniaturized components to make the entire system smaller.

2015-01-01T00:00:00Z Okomba, Nnamdi Ezea, Hilary Okwor, Candidus http://repository.fuoye.edu.ng:80/handle/123456789/986 2015-09-22T12:06:21Z 2015-08-04T00:00:00Z

Title: Increased Quality of Service through Vertical Handover in Herterogeneous Network of Umts and Wlan Authors: Okomba, Nnamdi; Ezea, Hilary; Okwor, Candidus Abstract: Abstract: This paper is a part of an ongoing research on handover performance when a user seamlessly moves between different accesses technologies is called Vertical heterogeneous handover.It discussed some of the advances that have been made to reduce vertical handover (VHO) latency for successful handover especially in heterogeneous network environments. Video streaming and voice conversation across different network environment could pose serious challenges to the quality of service during handover. This is the reason why it is imperative that mechanism for maintaining quality of service during handover is considered seriously. This investigation is aimed at adopting a VHO Mobile IP schemeto Furtherreduce handover latency in heterogeneous wireless networks composed of WLAN and GPRS or 3G networks for increased QoS for video and voice streaming. An enhanced hybrid scheme of Bi-mSCTP method with Mobile IP implementation, internetworking handover issue can be resolved and the handover Latency is reduced drastically to an accepted level for quality voice and video streaming. This approach reduces packet loss during handover and as a result the end user can get services continuously with minimal packet loss. The objective of this paper is to analyze the approach of hybrid scheme of Bi-mSCTP for real time traffics such as voice and video. Keywords: Vertical Handover, Heterogeneous Networks, WLAN, 3G or GPRS, Bi-mSCTP

2015-08-04T00:00:00Z Adeyanju, Ibrahim Adeosun, Olajide Awobayo, Tolulope Olayeni, Basheerat http://repository.fuoye.edu.ng:80/handle/123456789/984 2015-09-22T11:59:04Z 2015-05-01T00:00:00Z

Title: Simulation of a Fault Tolerant University Campus Area Network Authors: Adeyanju, Ibrahim; Adeosun, Olajide; Awobayo, Tolulope; Olayeni, Basheerat Abstract: The University has peculiar network needs that must be met for effective dissemination of information. A network allow sharing of files, data and other information giving authorized users the ability to access information stored on other computer on the network. The Campus Area Network (CAN) is still faced with so many problems with the ever increasing demand of computer network due to inadequate fault tolerance. In this paper, fault tolerance was simulated using redundancy and its effect in a network investigated. In order to improve network reliability, information about a CAN was gathered and the problem analysed. The analysis was used in formulating a CAN model. Also statistics were collected for evaluation and effectiveness of the model. It was investigated that the Database server response time with fault tolerance and non-fault tolerance are 0.52sec & 0.97sec respectively which gradually reduces gradually to a constant values of 0.28sec & 0.33sec respectively. The File server response time for both fault tolerance and non-fault tolerance are 2.4 sec & 3.4sec respectively initially and then reduces gradually to a constant value of 0.75sec & 1.8sec respectively. Furthermore, Hypertext transfer protocol server response time for both fault tolerance and non-fault tolerance are 3sec & 3.5sec respectively initially which reduces gradually to a constant value of 1.7sec & 2sec respectively. We present in this paper the simulation and analysis of a fault tolerant CAN in the OPNET Modeller environment.

2015-05-01T00:00:00Z Okwor, Candidus Okomba, Nnamdi S. Ezea, Hillary U. http://repository.fuoye.edu.ng:80/handle/123456789/983 2015-09-22T11:58:29Z 2015-08-04T00:00:00Z

Title: INCREASED QUALITY OF SERVICE THROUGH VERTICAL HANDOVER IN HETEROGENEOUS NETWORK OF UMTS AND WLAN Authors: Okwor, Candidus; Okomba, Nnamdi S.; Ezea, Hillary U. Abstract: Abstract: This paper is a part of an ongoing research on handover performance when a user seamlessly moves between different accesses technologies is called Vertical heterogeneous handover.It discussed some of the advances that have been made to reduce vertical handover (VHO) latency for successful handover especially in heterogeneous network environments. Video streaming and voice conversation across different network environment could pose serious challenges to the quality of service during handover. This is the reason why it is imperative that mechanism for maintaining quality of service during handover is considered seriously. This investigation is aimed at adopting a VHO Mobile IP schemeto Furtherreduce handover latency in heterogeneous wireless networks composed of WLAN and GPRS or 3G networks for increased QoS for video and voice streaming. An enhanced hybrid scheme of Bi-mSCTP method with Mobile IP implementation, internetworking handover issue can be resolved and the handover Latency is reduced drastically to an accepted level for quality voice and video streaming. This approach reduces packet loss during handover and as a result the end user can get services continuously with minimal packet loss. The objective of this paper is to analyze the approach of hybrid scheme of Bi-mSCTP for real time traffics such as voice and video

2015-08-04T00:00:00Z Adeyanju, Ibrahim http://repository.fuoye.edu.ng:80/handle/123456789/981 2015-09-22T11:48:18Z 2015-07-01T00:00:00Z

Title: 3D-Computer Animation for a Yoruba Native Folktale Authors: Adeyanju, Ibrahim Abstract: Computer graphics has wide range of applications which are implemented into computer animation, computer modeling e.t.c. Since the invention of computer graphics researchers haven’t paid much of attentions toward the possibility of converting oral tales otherwise known as folktales into possible cartoon animated videos. This paper is based on how to develop cartoons of local folktales that will be of huge benefits to Nigerians. The activities were divided into 5 stages; analysis, design, development, implementation and evaluation which involved various processes and use of various specialized software and hardware. After the implementation of this project, the video characteristics were evaluated using likert scale. Analysis of 30 user responses indicated that 17 users (56.7%) rated the image quality as excellent, the video and image synchronization was rated as excellent by 9 users (30%), the Background noise was rated excellent by 18 users (60%), the Character Impression was rated Excellent by 11 users (36.67%), the general assessment of the storyline was rated excellent by 17 users (56.7%), the video Impression was rated excellent by 11 users (36.67%) and the voice quality was rated by 10 users (33.33%) as excellent.

2015-07-01T00:00:00Z Petr CHLUMSKY, Zbynek KOCUR Jiri VODRAZKA http://repository.fuoye.edu.ng:80/handle/123456789/149 2016-01-15T13:28:24Z 2012-01-01T00:00:00Z

Title: COMPARISON OF DIFFERENT SCENARIOS FOR PATH DIVERSITY PACKET WIRELESS NETWORKS Authors: Petr CHLUMSKY, Zbynek KOCUR; Jiri VODRAZKA Abstract: This article discusses the use of the principles of network coding in wireless networks to increase the overall robustness of the transmission. Path diversity on the packet level is investigated as a software alternative to classical diversity techniques commonly used to improve wireless devices communication. The article describes the initial stage of the research of network coding in elementary form with network traffic duplication. Objects of investigation are two different types of transmission in two scenarios, where the resulting transmission loss is evaluated with dependency on the packet length. Description: This article discusses the use of the principles of network coding in wireless networks to increase the overall robustness of the transmission. Path diversity on the packet level is investigated as a software alternative to classical diversity techniques commonly used to improve wireless devices communication. The article describes the initial stage of the research of network coding in elementary form with network traffic duplication. Objects of investigation are two different types of transmission in two scenarios, where the resulting transmission loss is evaluated with dependency on the packet length.

2012-01-01T00:00:00Z Robert BESTAK, Valentin HELOU http://repository.fuoye.edu.ng:80/handle/123456789/143 2016-01-15T13:29:09Z 2012-01-01T00:00:00Z

Title: RANDOM CELL IDENTIFIERS ASSIGNMENT Authors: Robert BESTAK, Valentin HELOU Abstract: Despite integration of advanced functions that enable Femto Access Points (FAPs) to be deployed in a plug-and-play manner, the femtocell concept still cause several opened issues to be resolved. One of them represents an assignment of Physical Cell Identifiers (PCIs) to FAPs. This paper analyses a random based assignment algorithm in LTE systems operating in diverse femtocell scenarios. The performance of the algorithm is evaluated by comparing the number of confusions for various femtocell densities, PCI ranges and knowledge of vicinity. Simulation results show that better knowledge of vicinity can significantly reduce the number of confusions events. Description: Despite integration of advanced functions that enable Femto Access Points (FAPs) to be deployed in a plug-and-play manner, the femtocell concept still cause several opened issues to be resolved. One of them represents an assignment of Physical Cell Identifiers (PCIs) to FAPs. This paper analyses a random based assignment algorithm in LTE systems operating in diverse femtocell scenarios. The performance of the algorithm is evaluated by comparing the number of confusions for various femtocell densities, PCI ranges and knowledge of vicinity. Simulation results show that better knowledge of vicinity can significantly reduce the number of confusions events.

2012-01-01T00:00:00Z