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Mathematical and Software Engineering
43 Publications


  • Development of Optimal Site Selection Method for Large Scale Solar Photovoltaic Power Plant

    Joseph, Jacob Iniobong; Umoren, Anthony Mfonobong; Markson, Idorenyin (2016)
    In this paper, method selecting optimal location for large scale photovoltaic (PV) power plant in Imo State is carried out. Ten local government areas (LGAs) in Imo were selected out of the 27 LGAs in the state. Also, five parameters were used for ranking the selected LGAs for their suitability for large scale PV power plant. The five parameters are; (i) Global Irradiation On Horizontal Plane  (kWh/m²) (ii) Available Energy (Kwh) (iii) Yearly Unit Cost of Energy (iv) Population  (v) Land Mass...

    Determination of the Minimum Antenna Mast Height for Microwave Links with Nonzero Path Inclination: Method I

    Nwokonko, Swinton C.; Onwuzuruike, Vital K.; Nkwocha, Chibuzo Promise (2017)
    In this paper, a method that can be used to determine the minimum antenna mast height when the path inclination is not equal to zero is presented. In this method, none of the antenna height is known. In this case, the two antenna mast heights are determined from the knowledge of the location and height of the maximum obstruction in the communication link path. The mathematical models and the algorithm pertaining to the method are presented in this paper  along with sample numerical example us...

    Okumura-Hata Propagation Model Tuning Through Composite Function of Prediction Residual

    Udofia, Kufre M.; Friday, Nwiido; Jimoh, Afolayan J. (2016)
    In this paper, an innovative composite function of prediction residual-based approach for tuning Okumura-Hata propagation model in the 800-900MHz GSM frequency band is presented. The study is based on empirical measurements conducted at University Of Uyo (UNIUYO) town-campus located at latitude and longitude of 5.042976, 7.919046 respectively. The proposed path loss tuning approach is compared with RMSE based tuning approach. According to the results, the composite function of prediction resi...

    Flowchart for Clustered-Based Channel Allocation Management Scheme

    Ezenugu, Isaac A.; Eke, James; Onoh, G. N. (2017)
    In the GSM system, several Base Transceiver Station (BTS) are controlled by a single Base Station Controller (BSC). In this paper, the BTSs in a given BSC is referred to as a cluster.  In this paper, flowchart for clustered-based channel allocation management scheme is presented. The mechanism is meant to reduce call blocking/dropping to the barest minimum. Usually, traffic intensity value varies from one BTS to another, as it is directly proportional to the number of GSM users that make or r...

    Investigation of the Performance of Site Diversity through Rain Gauge Measurements in South-South Nigeria

    Achor, Jane O.; Udofia, Kufre M.; Jimoh, Afolayan J. (2016)
    Site diversity is an effective technique to mitigate rain attenuation, especially in regions where rainfall rates are high. The South-South region of Nigeria is characterized by the tropical rain forest climate, exhibiting high rainfall rates almost all year round. This paper  investigates the performance of site diversity technique  in the South-South Nigeria at Ka-band frequency of 20 GHz. Rainfall data obtained from the Nigerian Meteorological Agency (NIMET) over a period of five years (20...
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