Pilot Contamination (PC) has been considered as a majorlimiting factor of Time Division Duplexing (TDD) Massive Multiple-Input Multiple-Output (M-MIMO) systems, as itsaturates the signal to interference plus noise ratio (SINR) saturated. Similarly, several mitigation techniques such as Eigenvalue decomposition, cooperative Bayesian channel estimati... Continue Reading
This study, assessed the potentials of generating biogas from the organic fraction of municipal solid wastes to fuel an incinerator which is then used to burn the residual combustible solid waste. Municipal solid waste from Ahmadu Bello University (ABU) commercial market was collected, grinded and mixed with intestinal waste from slaughtered cattle... Continue Reading
This dissertation presents an Application of Bat Algorithm-Based Method (BA) forMulti-Objective Optimal Network Reconfiguration andDistributed Generation placement in Radial Distribution Network. The BA approach presented in this work enables the reconfiguration of the network as well as the optimal distributed generation(DG) placement in one seaml... Continue Reading
Energy is one commodity on which provision of goods and services depend. Its availability and consumption rate is an economic index to measure the development of any community. Nigeria has limitation to power supply from the National grid which has adverse effect on the populace?s economic and social development. This necessitates the need for othe... Continue Reading
The problem of water Scarcity, water pollution and cost of accessing water for domestic needs have become growing concerns to the ever increasing global population. Waterwaterremediation has long been accepted as a viable option to mitigate water scarcity. This research examines the potentials of an environmentally friendly technique of using local... Continue Reading
In this study, a Laboratory-scale Horizontal Subsurface Flow Constructed Wetland has been designed, and three replicas constructed, cultivated with selected locally available aquatic plants Phragmites australis,Polygonum salicifolium + Ipomoea carnea, respectively, with the third cell un-vegetated, and used to treat tannery effluent. The capacity o... Continue Reading
Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier frequency multiplexing scheme used in broadband wireless communication systems and has advantages such as high spectral efficiency, simple channel equalization and flexibility.One of its major challenges is the high Peak-to-Average Power Ratio (PAPR) of the signal which can cause ... Continue Reading
Energy efficiency is one of the most important challenges for Wireless Sensor Networks (WSNs). This is due to the fact that sensor nodes have limited energy capacity. Therefore, the energy of sensor nodes has to be efficiently managed to provide longer lifetime for the network. To reduce energy consumption in WSNs, a Modified Energy Efficient Clust... Continue Reading
High-density polyethylene composites of date seed powder were prepared at filler loadings of 0 to 40wt%. The particle sizes of the date seed powder investigated were 72, 125, 150 and 180?m. Calcium carbonate was used as a reference filler. The high- density polyethylene composites were prepared in a two-roll mill machine and the resulting composite... Continue Reading
The field experiment was conducted during the 2011 dry season at the Irrigation Research Fields of the Institute for Agricultural Research (IAR), Samaru, Nigeria, to evaluate yield and soil water balance of two cowpea varieties under deficit irrigation and mulch using locally assembled weighing- type micro lysimeter. The treatments comprised of thr... Continue Reading
This research focused on the production of furfural from microalgae biomass and optimizing the process parameters using Response Surface Methodology (RSM). Furfural production was carried out by hydrolysis of Pentosans to Pentoses where Pentosans in hemicelluloses is hydrolyzed with dilute mineral acids and NaCl as a promoter at relatively low temp... Continue Reading
The generation of electric power using different fuel resources to meet load demand and losses while satisfying various constraints on the system involves high running cost (cost of fuel). Therefore, it requires electric utilities to minimize the cost of production of electric power by planning and dispatching generating units in an economic and ef... Continue Reading
A fixed bed pyrolysis system has been designed and constructed for obtaining liquid fuel from palm kernel shell. The major components of the system are: fixed bed reactor and condensate unit. The palm kernel shell in particle form was pyrolized in an externally heated 90mm diameter and 360mm high fixed bed reactor. The reactor is heated by means of... Continue Reading
The major problems of most wireless technologies such as EDGE, HSPA, WiMax, HSPA+, WiFi G, WiFi and LTE are the imbalance of radio resources allocation as well as unfairness and difficulty to achieve unity index. These result in overstressing the networks while leaving some idle. This imbalance of resources amongst the networks brings about poor qu... Continue Reading
High signaling load due to location management (LM) scheme in Long Term Evolution (LTE) Networks is a major quality of service issue due to the significant amount of resources consumed by this scheme. This scheme needs to be managed efficiently to guarantee seamless connection to any user on the Network at any time. Increasing trends of connected m... Continue Reading