Browsing by Author "Oloyede, Abdulkarim A"

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    Comparative Study of Routing Protocol Performance in Mobile Ad hoc Network
    (International Journal of Information Processing & Communication, 2019) 1. Sowande, Olugbenga; Salami, R; Adebowale, Quadri Ramon; Nasir, Faruk; Olawoyin, Lukman Abiodun; Adeniran, Temitayo C; Oloyede, Abdulkarim A
    Over the decades amazing progress has been observed in the world of wireless and mobile communication that ushers in the era in which laptops, smartphones and sensors have become pervasive, inexpensive and rapidly available. Due to the high mobility and dynamic nature of the network finding an effective and efficient routing protocol for a particular scenario is often a challenge. This paper basically focuses on the comparative study of the performance of the routing protocols (Ad hoc On-demand Distance Vector (AODV), Dynamic Source Routing (DSR), Optimized Link State Routing(OLSR)) using OPNET (Optimized Network Engineering Tool). Four scenarios were created, and each scenario with different nodes and run on three application services (HTTP, FTP and Video conferencing). The performance of the protocols was compared based on certain metrics (Throughput, end-to-end Delay, Load). The simulation results show that the AODV on the average performed better than OLSR and DSR, but OLSR will be preferred for real-time application and higher number of connected nodes in a MANET system
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    Economics of Dynamic Spectrum Access
    (Faculty of CIS, University of Ilorin, Nigeria, 2017-05) Lukman A, Olawoyin; Oloyede, Abdulkarim A; Faruk, Nasir; Adediran, Yinusa A
    Dynamic Spectrum Access (DSA) was introduced to enhance spectral efficiency as a result of increasing demand for the use of the radio spectrum and to combat the inefficiencies associated with static spectrum allocation. However, it is envisaged that the DSA would result in a drop in revenue, increase in operational costs and could leads to congestion of the network as a result of interference imposed due to secondary usage of the spectrum. Moreover, there is also a need to reduce the energy consumption of the system which could combat the climate change. This therefore, necessitates, the need to examine the social-economic aspect of the DSA systems. The paper investigates the appropriateness of an auction process in DSA networks. Game theory was used to propose a model that helps solving the pricing challenges expected of an auction-based DSA network. The results presented show that, if properly implemented, the DSA can help in congestion management, increase in revenue generation, decrease in operational costs and reduction in in energy consumption.