Hybrid mmWave-Li-Fi 5G architecture for reconfigurable variable latency and data rate communications

I Lau, S Ekpo, M Zafar, M Ijaz, A Gibson - IEEE Access, 2023 - ieeexplore.ieee.org
Despite modern vehicles having the necessary advanced driver assistance systems (ADAS)
for autonomous operation, current implementations rely solely on sensor information from …

Hybrid power divider and combiner for passive RFID tag wireless energy harvesting

M Zafar, S Ekpo, J George, P Sheedy, M Uko… - IEEE …, 2021 - ieeexplore.ieee.org
This paper presents three-and five-ports radio frequency (RF) hybrid power divider combiner
(HPDC) designs with multiband characteristics operating at 2.4 GHz (ISM, IEEE 802.11 b, g); …

Sub-6 GHz 5G spectrum for satellite-cellular convergence broadband internet access in Nigeria

O Sowande, F Idachaba, S Ekpo… - International Review …, 2022 - e-space.mmu.ac.uk
Broadband access drives the global digital economy and has triggered the emergence of
newer radio access technologies to meet data-driven consumers' expectations. In the period …

Potential game-based radio resource allocation in uplink multibeam satellite IoT networks

X Zhang, B Zhang, D Guo, K An, S Qi… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this article, we introduce a potential game-based approach to implement collaborative
user scheduling and power allocation in the uplink multibeam satellite-based Internet of …

A 23-28 GHz pHEMT MMIC low-noise amplifier for satellite-cellular convergence applications

M Uko, S Ekpo - International Review of Aerospace …, 2021 - e-space.mmu.ac.uk
Satellite-cellular convergence promises to enable higher millimetre-wave bandwidth (data
rate); beamformed better signal alignment (higher system efficiency); multi-connectivity …

Link budget analysis for LEO satellites based on the statistics of the elevation angle

JM Gongora-Torres, C Vargas-Rosales… - Ieee …, 2022 - ieeexplore.ieee.org
Link budgets are widely applied to evaluate communication links for low Earth Orbit (LEO)
satellites. However, approaches to calculate the received power from LEO satellites have …

Design and Analysis of mm-Wave MIMO SIW Antenna for Multibeam 5G Applications

S Ghosh, S Chakraborty, D Saha… - 2023 IEEE-APS …, 2023 - ieeexplore.ieee.org
This paper presents a slotted substrate integrated waveguide (SIW) multiple input multiple
output (MIMO) antenna architecture for mm-Wave/mid-band 5G/6G satellite-cellular …

[HTML][HTML] Performance Optimization of 5G–Satellite Integrated Networks for IoT Applications in Smart Cities: A Two-Ray Propagation Model Approach

M Uko, SC Ekpo, S Enahoro, F Elias - Smart Cities, 2024 - mdpi.com
Highlights What are the main findings? Signal strength in 5G-satellite smart city networks
exhibits considerable variability (up to 40 dB) resulting from constructive and destructive …

Gap-coupled resonator loaded ultra-wideband filtenna for frequency-notching applications

D Saha, S Ghosh, SC Ekpo, M Zafar… - 2023 European …, 2023 - ieeexplore.ieee.org
A fifth-order gap-coupled resonator loaded ultra-wide band (UWB) filtenna is proposed in
this research article. The band-stop Butterworth filter is designed at the ISM frequency of 5.8 …

Hybrid Wireless RF-Perovskite Photovoltaic Energy Harvester Design Consideration for Low-Power Internet of Things

M Uko, F Elias, S Ekpo, D Saha… - 2023 IEEE-APS …, 2023 - ieeexplore.ieee.org
The rapid growth of the Internet of Things (IoT) has led to increased demand for low-power
energy harvesting solutions to power the vast number of interconnected devices. In this …