Browsing by Author "Dahunsi, Folasade Mojisola"

Now showing 1 - 3 of 3
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    Communication Network Simulation for Smart Metering Applications: A Review
    (Bursa Technical University, Turkey, 2021-03-11) Dahunsi, Folasade Mojisola; Olayanju, Sunday Akinwale; Ponle, Akinlolu Adediran; Sarumi, Oluwafemi
    Many countries are witnessing the deployment of millions of smart meters, as they strive to upgrade their traditional grid to the smart grid already prominent in the developed parts of the world. Communication networks that can offer high-speed communication will be required for transmission of the copious amount of data resulting from the numerous smart meters and other intelligent electronic devices (IEDs) in the distribution network substation. Therefore, there is a need to critically assess the available communication infrastructure for eventual upgrade and deployment. In this paper, a survey of the communication network and networks simulation software used for this purpose was carried out, with specific emphasis on smart metering applications. Some critical requirements identified are security, quality of service (QoS) and optimal cost for system operation. Also discussed are methods employed in the works of literature to handle the critical issues raised. For data transmission between the meters and data concentrators; power line communication (PLC) was mostly cost-effective and hence, mostly deployed. In the wireless category, ZigBee (802.15.4), Wi-Fi (802.11), and WiMAX (802.16) among others are suitable and have been successfully deployed. OPNET, NS-3, NS-2, and OMNET++ have been successfully employed for communication network simulations in smart metering applications
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    Conceptual framework for sleep modes exploitation analysis for energy-efficient 5G non-standalone new radio heterogeneous networks
    (IOP science, 2021-06) Olayanju, Sunday Akinwale; Dahunsi, Folasade Mojisola
    The consideration for reduced operational expenses (OPEX) and concern for carbon dioxide (CO2) emission effects on the environment has made energy efficiency a key ingredient in the design and operation of communication networks. The introduction of 5G wireless networks come along with millions of Base Transceiver Stations (BTSs) and corresponding billions of devices that can be connected to the networks. The future of radio communications is then posed for greater energy consumption. Energy-efficient wireless communication (“green” communication) is a compelling need. In this paper, analysis for exploiting sleep modes of 5G non-standalone New Radio (NSA-NR) heterogenous BTS for energy consumption optimization is provided. The analysis includes the prospects of using the sleep ratio of 4G long term evolution (LTE) and 5G NR of the heterogenous BTS to optimize energy consumption
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    Mitigation strategies for communication networks induced impairments in autonomous microgrids control: A review
    (AIMS Electronics and Electrical Engineering, 2021-12-16) Olayanju, Sunday Akinwale; Dahunsi, Folasade Mojisola; Ponle, Akinlolu Adediran
    The advancement in communication technology and the availability of intelligent electronic devices (IEDs) have impacted positively on the penetration of renewable energy sources (RES) into the main electricity grid. High penetration of RES also come along with greater demand for more effective control approaches, congestion management techniques, and microgrids optimal dispatch. Most of the secondary control methods of microgrid systems in the autonomous mode require communication links between the distributed generators (DGs) for sharing power information and data for control purposes. This article gives ample review on the communication induced impairments in islanded microgrids. In the review, attention is given to communication induced delay, data packet loss, and cyber-attack that degrades optimal operations of islanded microgrids. The review also considered impairments modelling, the impact of impairments on microgrids operation and management, and the control methods employed in mitigating some of their negative impacts. The paper revealed that innovative control solutions for impairment mitigation rather than the development of new high-speed communication infrastructure should be implemented for microgrid control. It was also pointed out that a sparse communication graph is the basis for communication topology design for distributed secondary control in the microgrid.