A5078178010- Advanced MIMO Systems Optimization
- Millimeter-Wave Propagation and Modeling
- Cooperative Communication and Network Coding
- Power Line Communications and Noise
- Wireless Communication Security Techniques
- Wireless Communication Networks Research
- Radio Wave Propagation Studies
- Chaos-based Image/Signal Encryption
- Cognitive Radio Networks and Spectrum Sensing
- Telecommunications and Broadcasting Technologies
- ECG Monitoring and Analysis
- Energy Harvesting in Wireless Networks
- ICT in Developing Communities
- Non-Invasive Vital Sign Monitoring
- ICT Impact and Policies
- Microwave Engineering and Waveguides
- Antenna Design and Analysis
- Mobile Health and mHealth Applications
- Coding theory and cryptography
- Mobile Ad Hoc Networks
- Opportunistic and Delay-Tolerant Networks
- Advanced Wireless Network Optimization
- Energy Efficient Wireless Sensor Networks
- Microgrid Control and Optimization
- Advanced Wireless Communication Techniques
University of Ilorin
2017-2023
Sule Lamido University
2022
University of Nigeria
2019
Beijing University of Posts and Telecommunications
2014-2017
Deep knowledge of how radio waves behave in a practical wireless channel is required for effective planning and deployment access networks urban environments. Empirical propagation models are popular their simplicity, but they prone to introduce high prediction errors. Different heuristic methods geospatial approaches have been developed further reduce path loss error. However, the efficacy these new techniques built-up areas should be experimentally verified. In this paper, efficiencies...
Path loss prediction is an important process in radio network planning and optimization because it helps to understand the behaviour of waves a specified propagation environment. Although several models are currently available for path predictions, adoption these requires trade-off between simplicity accuracy. In this paper, new model developed based on Adaptive Neuro-Fuzzy Inference System (ANFIS) multi-transmitter scenarios applicable Very High Frequency (VHF) bands. Field measurements...
Path loss prediction models are essential in the planning of wireless systems, particularly build-up environments. However, efficacies depend on local ambient characteristics This paper proposed Neuro-Fuzzy (NF) model for path Ilorin VHF band. Received signal strengths along four different routes were measured using NTA transmitter which operates at a frequency 203.25 MHz as reference. The predictions was compared to Hata, COST 231, Egli and ECC-33 considered standard widely used empirical...
The implementation of heterogeneous cloud radio access network (H-CRAN) architecture is faced with practical challenges, such as the capacity and time-delay limitations fronthaul links. This paper considers use device-to-device (D2D) communication to offload remote heads (RRHs) located in coverage region high-power nodes (HPNs). We propose an H-CRAN non-uniformly deployed D2D communication, which links are only utilized outside a specified distance from any HPN. Based on analytical framework...
Access to quality healthcare is a major problem in Sub-Saharan Africa with doctor-to-patient ratio as high 1:50,000, which far above the recommended by World Health Organization (WHO) 1:600. This has been aggravated lack of access critical infrastructures such health care facilities, roads, electricity, and many other factors. Even if these are provided, number medical practitioners cater for growing population countries not sufficient. In this article, how information communication...
Path loss models are essential in the planning of wireless networks. However, peculiar ambient characteristics geographical locations necessitate a wide range these to take into consideration different terrain dielectric, scattering irregularities, and clutter. This study investigates effects clutter on frequency‐dependent path very high frequency (VHF) ultra (UHF) bands using multi‐transmitter scenarios. Seven transmitters 15 measurement routes were covered an Agilent N9342C spectrum...
Path loss propagation is a vital concern when designing and planning networks in mobile communication systems. Propagation models such as the empirical, deterministic theoretical models, which possess complex, inconsistent, time-consuming non-adaptable features, have proven to be inefficient of wireless systems, thereby resulting need for more reliable model. Artificial Intelligence methods seem overcome drawbacks predicting path loss. In this paper, ANFIS approach prediction GSM WCDMA bands...
Access to quality healthcare is a major problem in Sub-Saharan Africa with doctor-to-patient ratio as high 1:50,000 which far above the recommended of World Health Organization (WHO). This has been aggravated by lack access critical infrastructures such health care facilities, roads, electricity and many others. Even if these are provided, number medical practitioners cater for growing population countries not sufficient. However, impacts telemedicine have shown some positive effects...
This paper has presented a comprehensive review in the area of microgrid from design to implementation. The aim is evaluate current status, problems and research efforts toward realising functional microgrids power system. expectations about are many; therefore study divided into three main sections. Recent advancements wind energy, solar energy their future prediction summarised. States arts optimum renewable also investigated. In addition, critical literature reliability analysis...
Artificial Neural Networks (ANNs) which are one of the main tools used in machine learning have often been utilised developing models for path loss modelling recent times. However, ANN algorithm that provides best results has not well established neither characterized to limit their performances and applications various frequency bands. In this paper, we characterize propagation Very High Frequency Band (VHF, 30-300MHz) by using different algorithms activation functions based on measurement...
Path loss propagation models are critically needed for optimum planning and deployment of wireless communication networks. However, the complexity exhibited by propagated signals makes prediction received losses difficult in built-up environments. There is however a new paradigm shift towards application computational methodologies, such as Artificial Neural Networks (ANN), multi-band path prediction. In this paper, we have developed ANN-based model The was using large scale data collected...
Electrocardiography (ECG) is one of the most widely used recordings in clinical medicine. ECG deals with recording electrical activity that generated by heart through surface body. The measured using electrodes are attached to body surface. use diagnosis and management cardiovascular disease (CVD) has been existence for over a decade, research this domain recently attracted large attention. Along line, an expert system (ES) decision support (DSS) have developed interpretation diagnosis....
Explosion in the demand for mobile applications and services necessitates efficient utilization of limited radio spectrum. Determination a suitable detection threshold is an important aspect spectrum occupancy measurement. Inappropriate choice value may either increase probability false alarm or failure detection. However, most appropriate not yet clearly stated, though, International Telecommunication Union (ITU) has provided benchmark 10 dB above noise level as acceptable value. In this...
Abstract The broadcast nature of radio propagation in wireless communication has been suspected as the loopholes passive or active attacks by unauthorized users (eavesdroppers). physical layer security techniques operate at lowest stack OSI against conventional cryptographic approaches, operating upper layer. However, such channel coding, power (directional antenna and artificial noise), spread spectrum have (and continuously) deployed to safeguard sophisticated attacks. Most these...
Empirical path loss propagation models are widely used for coverage planning and interference analysis of wireless networks. The efficacy these depend on the local ambient features environments, thus, making them susceptible to high prediction errors when applied in different set environments. In this paper, we developed a Kriging model Very High Frequency (VHF) band using geo-statistical approach. Electromagnetic field strength measurements were conducted VHF (i.e. 203.25 MHz) Ilorin...
This paper presents a design of centre-fed Rectangular Microstrip Patch Antenna (RMSA) that resonates at exactly 3.8 GHz. The effect the dielectric material's choice, substrate height, constant, and material is on RMSA for constant resonant frequency while maintaining signal integrity reducing loss. antenna's gain input return loss are improved by adjusting upper lower bounds height substrate. Results show maximum bandwidth 350 MHz, 7.77 dBi, (S11) below–33 dB were obtained. Furthermore,...
The introduction of new kinds technological products, applications and services that rely on wireless communications has resulted into an upsurge inglobal mobile data traffic. There is, therefore, a need to investigate the efficient utilization limited available radio spectrum. In this paper, we examine spatial variation spectrum occupancy (i.e. duty cycle) in GSM 900 MHz band within Kwara State, Nigeria. Experimental results show there is very high variance cycle from one location other...