Author:Mamushiane, Lusani; Mwangama, J; Lysko, Albert A; Kobo, Hlabishi IDate:Aug 2022The global impact of COVID-19 has been unprecedented, with over-the-top (OTT) services consumption growing at a staggering rate. While OTT does consume revenue-generating data, OTT services are gradually substituting the traditional primary ...Read more
Author:Ebrahim, Rozeena; Mthethwa, Nosipho B; Lysko, Albert ADate:Nov 2022This paper looks at design considerations for an Electronically Steerable Parasitic Array Radiator (ESPAR) antenna suitable for inexpensive large-scale wireless network technologies. This can help address the demand for a cheaper, simpler, ...Read more
Author:Hussien, HM; Katzis, K; Mfupe, Luzango P; Bekele, ETDate:Jun 2022The coverage and capacity of exploiting TV White Spaces (TVWS) from High Altitude Platforms (HAPs) with multiple antenna payloads using uniform rectangular phased array (URA) antennas are explored in this article. A scenario is suggested in ...Read more
Author:Lysko, Albert A; Ngcama, Lwando; Shingwenyana, Rhulani K; Ramotsoela, DDate:Dec 2022Smart water utility management is gaining strong momentum as it can help to identify leaks and control the water flow, level and pressure. The latter can be used to reduce leaks, reduce bursts and prolong the life of pipes. All these factors ...Read more
Author:Mamushiane, Lusani; Lysko, Albert A; Kobo, Hlabishi I; Mwangama, JDate:Aug 2023Field trials and experimentation are crucial for accelerating the adoption of standalone (SA) 5G in Africa. Traditionally, only network operators and vendors had the opportunity for practical experimentation due to proprietary systems and ...Read more
Author:Hussien, HM; Katzis, K; Mfupe, Luzango PDate:Dec 2021The issue of spectrum allocation in cognitive high altitude platform wireless networks using TV White Space (TVWS) spectrum is presented in this paper. The mathematical model of spectrum allocation is given, and this model is converted into ...Read more
Author:Lysko, Albert A; Mfupe, Luzango PDate:Dec 2022The radio frequency spectrum is a very valuable resource. Analogue television broadcasting uses the spectrum inefficiently and television (TV) broadcasting brings less income than mobile services. With these, the world is moving to digital ...Read more
Author:Mamushiane, Lusani; Lysko, Albert A; Mwangama, J; Kobo, Hlabishi I; Otieno, HODate:Aug 2023The adoption of 5G technology in Africa has been increasing steadily, with initial emphasis on non-standalone (NSA) architecture to leverage existing 4G investments and accelerate return on investment. The uptake of standalone (SA) 5G has ...Read more
Author:Mzyece, M; Mfupe, Luzango P; Mekuria, FissehaDate:Nov 2018Television white space (TVWS) networks based on geo-location spectrum databases (GLSDs) present an excellent opportunity to provide affordable broadband to underserved rural communities in Sub-Saharan Africa. In this paper, we explore potential ...Read more
Author:Nwachukwu, SE; Chepkoech, M; Lysko, Albert A; Awodele, K; Mwangama, J; Burger, Chris RDate:Aug 2022The steady increase in data traffic rates and systems’ complexity have contributed to the information and communication technologies (ICT) sector’s increased energy consumption and CO 2 emissions. These pose a significant challenge to the ...Read more
Author:Nwachukwu, SE; Chepkoech, M; Lysko, Albert A; Awodele, K; Mwangama, J; Burger, Chris RDate:Aug 2022The steady increase in data traffic rates and systems’ complexity have contributed to the information and communication technologies (ICT) sector’s increased energy consumption and CO 2 emissions. These pose a significant challenge to the ...Read more
Author:Zlobinsky, N; Johnson, D; Mishra, AK; Lysko, Albert ADate:Dec 2021Channel Assignment (CA) in wireless mesh networks (WMNs) has not been well studied in scenarios where the network uses Dynamic Spectrum Access (DSA). This work aims to fill some of this gap. We compare metaheuristic algorithms for optimising ...Read more
Author:Habib, MH; Katzis, K; Mfupe, Luzango P; Ephrem, TBDate:Jul 2022The Uniform hexagonal array (UHA) sidelobe level (SLL) reduction is a crucial consideration for avoiding co-channel interference and improving Carrier-to-interference Ratio (CIR) performance in HAP wireless networks using the TVWS spectrum. ...Read more
Author:Burger, Chris R; Lysko, Albert ADate:Sep 2023This paper proposes a simple and inexpensive test setup that can be used to evaluate, compare and study the power consumption of different testbed configurations. The paper offers a description of the design, including safety considerations ...Read more
Author:Mfupe, Luzango P; Kaijage, S; Mwangama, J; Oyerinde, O; Katzis, KDate:Sep 2021AFRICON is the Institute of Electronics and Electrical Engineers (IEEE) Region 8 flagship conference on the African continent. IEEE AFRICON 2021 was virtually held in Arusha, Tanzania from Monday the 13th to Wednesday the 15th of September ...Read more
Author:Lebese, J; Olwal, T; Mfupe, Luzango PDate:Sep 2021Spectrum occupancy measurements have become vital due to the proliferation of radio users. Literature shows that most of the allocated spectrum is used sporadically. This brings in the idea of dynamic spectrum access techniques using Cognitive ...Read more
Author:Mathibe, MJ; Muchenje, T; Masonta, Moshe TDate:Dec 2022The Coronavirus (COVID-19) pandemic changed how people and businesses interact. Its impact severely impacted the global economy. As the governments of different countries imposed heavy lockdown regulations to curb the spread of the virus, an ...Read more
Author:Masonta, MosheDate:Jun 2023Access to high-speed broadband infrastructure and services plays a vital role towards achieving the United Nations’ Sustainable Development Goals (SDG). However, the International Telecommunication Union (ITU) revealed that only 63% of the ...Read more