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Botswana International University of Science and Technology: Recent submissions

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Blockchain-based distributive auction for relay-assisted secure communications

Khan, Amjad Saeed; Rahulamathavan, Yogachandran; Basutli, Bokamoso; Zheng, Gan; AsSadhan, Basil; Lambotharan, Sangarapillai (IEEE, 2019-08-02)

Physical layer security (PLS) is considered as a promising technique to prevent information eavesdropping in wireless systems. In this context, cooperative relaying has emerged as a robust solution for achieving PLS due ...
Data compression algorithms for wireless sensor networks: a review and comparison

Ketshabetswe, Keleadile Lucia; Zungeru, Adamu Murtala; Mtengi, Bokani; Lebekwe, Caspar K.; Prabaharan, S.R.S. (IEEE, 2021-09-29)

Energy consumption has risen to be a bottleneck in wireless sensor networks. This is caused by the challenges faced by these networks due to their tiny sensor nodes that have limited memory storage, small battery capacity, ...
Assessing repeatable accuracy potential of LoRa: a navigation approach

Lebekwe, Caspar K.; Kolobe, Lone; Sigweni, Boyce; Zungeru, Adamu Murtala (IEEE, 2022-04-29)

Two main classes of radio navigation systems are satellite and ground-based systems. Examples of such systems are eLoran deployed as a terrestrial system, and BeiDou, Galileo, GPS and Quasi-Zenith Satellite System (QZSS) ...
LoRa network planning and deployment: a terrestrial navigation application

Kolobe, Lone; Lebekwe, Caspar K.; Sigweni, Boyce (IEEE, 2021-09-20)

Long Range (LoRa) is a popular low power wide area network (LPWAN) technology which operates in the Industrial, Scientiﬁc and Medical (ISM) frequency band transmitting information over ranges in excess of 20 km and 5 km ...
Students’ perceptions of learning experiences from the final-year engineering project

Oladiran, Moses Tunde; Uziak, Jacek; Tjiparuro, Zeundjua (World Institute for Engineering and Technology Education (WIETE), 2020)

The final-year project (FYP), also known as a capstone course, is usually the principal course, where many learning experiences are realised and gained in an undergraduate engineering programme. Therefore, several exit ...
An innovative microwave-assisted one-step green synthetic approach of biowaste derived fluorescent carbon-dot invisible ink for currency anti-counterfeiting applications

Dinake, Pogisego; Phokedi, Gothatamang Norma; Mokgadi, Janes; Mokibe, Tumisang; Tlhako, Mogomotsi; Botlhomilwe, Mmamiki Ayanda; Kelebemang, Rosemary; Motswetla, Obakeng; Present, Bokang (World Scienti ̄c Publishing Company, 2022-04-21)

The quest for the design and synthesis of carbon dots with anti-counterfeit properties that are derived via green, environmentally friendly and economical procedures is a continuous process. Carbon dots (C-dots) derived ...
Climate finance readiness: a review of institutional frameworks and policies in Kenya

Kiremu, Mercy; Scrimgeour, Frank; Mutegi, James; Mumo, Richard (Taylor & Francis group, 2022-02-12)

A significant increase in low carbon investments is required to limit global warming to less than 2°C. For example, about USD 900 billion should be invested annually in the energy sector up to 2030 to meet this target. ...
Projection of extreme temperature events over the Mediterranean and Sahara using bias-corrected CMIP6 Models

Babaousmail, Hassen; Ayugi, Brian; Rajasekar, Adharsh; Zhu, Huanhuan; Oduro, Collins; Mumo, Richard; Ongoma, Victor (Multidisciplinary Digital Publishing Institute, 2022-05-06)

Climate change continues to increase the intensity, frequency and impacts of weather and climate extremes. This work uses bias-adjusted Coupled Model Intercomparison Project Phase six (CMIP6) model datasets to investigate ...
East African population exposure to precipitation extremes under 1.5 °C and 2.0 °C warming levels based on CMIP6 models

Ayugi, Brian; Jiang, Zhihong; Iyakaremye, Vedaste; Ngoma, Hamida; Babaousmail, Hassen; Onyutha, Charles; Dike, Victor Nnamdi; Mumo, Richard; Ongoma, Victor (IOP Publishing Ltd, 2022-03-29)

Understanding population exposure to precipitation-related extreme events is important for effective climate change adaptation and mitigation measures. We analyze extreme precipitation using indices (EPIs), including ...
Spectrum handoff in cognitive radio based smart grid network

Okon, Daniel Job (Botswana International University of Science and Technology (BIUST), 2020-08)

The Smart Grid (SG) as an intelligent power network, depends on a reliable and eﬃcient communication network to provide two-way communication, which is a prime feature of the smart grid. Many researchers have proposed ...
Slope stability modelling of slurry dams through cone penetration data interpretation

Champi, Thuto (Botswana International University of Science and Technology (BIUST), 2021-08)

This research entailed slope stability analysis of Orapa Mine Slurry Dam 2, located at Orapa in Botswana. The Finite Element (FE) Strength Reduction Technique was used and findings were compared with results from three ...
Design and development of a wireless colour-based optical modulation system

Mapunda, Galefang Allycan (Botswana International University of Science and Technology (BIUST), 2021-06)

In visible light communication(VLC),arrays consisting of a single or multi-colour light sources are employed for a dual purpose being: the provision of illumination and data transmission. Therefore, it is substantial to ...
A study on the comminution characteristics of diorite

Gaesenngwe, Gaesenngwe (Botswana International University of Science and Technology (BIUST), 2021-02-18)

The focus of this thesis was on the comparison in breakage behavior of heterogeneous diorite rock obtained at two separate quarry locations in Botswana. There are many problems associated with inefficient size reduction ...
The complete mitogenome of the fairy shrimp Streptocephalus cafer (Lovén, 1847) (Crustacea: Branchiopoda: Anostraca) from an ephemeral pond in Botswana, southern Africa

Tladi, Murphy; Dalu, Tatenda; Rogers, Christopher; Nyamukondiwa, Casper; Parbhu, Shilpa Pradeep; Teske, Peter; Emami-Khoyi, Arsalan; Wasserman, Ryan John (Taylor & Francis Group, 2020-01-14)

Fairy shrimps (Anostraca) constitute an important component of seasonally aquatic habitats, but few complete mitochondrial genomes have been published for this group. Here, we report the mitoge nome of a common southern ...
Neuronal firing and DNA dynamics in a neural network

Etémé, Armand Sylvin; Tabi, Conrad Bertrand; Ateba, Jean Felix Beyala; Ekobena, Henri Paul Fouda; Mohamadou, Alidou; Kofane, Timoléon Crepin (IOP Publishing Ltd, 2018-12-18)

We study the mutual effects of neuronal electrical activity and DNA dynamics in a network of electrically coupled neurons with nearest neighbors communication. For that we develop by means of the coupling function method, ...
Zinc oxide nanowire field effect transistor used as a pH sensor

Ditshego, Nonofo M.J. (International Journal of Electrical and Electronic Engineering & Telecommunications, 2022-03)

An ion sensitive field effect transistor can outperform conventional ion-selective electrodes. Thus, a zinc oxide (ZnO) nanowire field effect transistor (NWFET) pH sensor was fabricated and measured. The sensor contained ...
The Topp Leone-G Power Series class of distributions with applications

Makubate, Boikanyo; Rannona, Kethamile; Oluyede, Broderick; Chipepa, Fastel (Pakistan Journal of Statistics and Operation Research, 2021-12)

We present a new class of distributions called the Topp-Leone-G Power Series (TL-GPS) class of distributions. This model is obtained by compounding the Topp-Leone-G distribution with the power series distribution. Statistical ...
Effect of Cd precursor on structure and optical properties of spin coated Zn0:9Cd0:1O films for optoelectronics applications

Arora, Isha; Kumar, Praveen; Sathiaraj, T.Stephen (Sciendo, 2021-09-01)

The development of transparent conducting oxide materials has gained an increased interest in the scientific community for developing efficient low cost optoelectronic devices. The effect of Cd precursor on structural and ...
Hierarchical multilevel optimization with multiple-leaders multiple-followers setting and nonseparable objectives

Zewde, Addis Belete; Kassa, Semu Mitiku (EDP Sciences, 2021-09-18)

Hierarchical multilevel multi-leader multi-follower problems are non-cooperative decision problems in which multiple decision-makers of equal status in the upper-level and multiple decision makers of equal status are ...
Loss-tolerant prepare and measure quantum key distribution protocol

Mafu, Mhlambululi; Sekga, Comfort; Senekane, Makhamisa (Elsevier B.V. on behalf of African Institute of Mathematical Sciences, 2021-11-07)

We propose a modified version of the Bennett–Brassard 1984 quantum key distribution protocol intended to tolerate losses, certain forms of noise, and the so-called photon number splitting attack. These are the issues ...

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