Author:Mathebula, I; Isong, B; Gasela, N; Abu-Mahfouz, Adnan MIDate:Nov 2020Software-Defined Wireless Sensor Networks (SDWSN) has received significant attention in recent years due to its inherent challenges such as network security, trust management, inefficient energy consumption, and so on. In particular, inefficient ...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:Isong, B; Molose, RRS; Abu-Mahfouz, Adnan MI; Dladlu, NDate:Sep 2020Software-Defined Networking (SDN) is a network paradigm introduced to overcome the inherent challenges of traditional networks. Its architecture is either deployed with a single controller or multiple controllers. While the first is not ...Read more
Author:Ntshabele, K; Isong, B; Abu-Mahfouz, Adnan MIDate:May 2021Low Power Wide Area Network (LPWAN) is a network technology that emanated from the swift advancement of the Internet of Things (IoT) market. It is characterized by low cost, long-range communications, low power consumptions, and better area ...Read more
Author:Mofolo, MOR; Lysko, Albert ADate:Sep 2013It is often convenient to power up peripheral devices directly from the host device interface, without a need for additional and/or external power supply. In this paper we present a design of the RS232-powered controller for electronically ...Read more
Author:Machete, Fannie; Morakinyo, OMDate:Apr 2017This study presents a characterization framework for energy efficient hotels. It builds on existing frameworks of energy efficiency and the adopted characterization framework advances from the input-output framework. The theoretical framework ...Read more
Author:Masonta, Moshe T; Ntlatlapa, Ntsibane S; Mzyece, MDate:Sep 2009The rapid growth and development observed in wireless communications has resulted in the overcrowding of the radio spectrum used as a communication medium in wireless networks. In many countries, governmental agencies regulate the use of the ...Read more
Author:Dzobo, O; Tazvinga, Henerica; Mungofa, E; Chihobo, CH; Chikuni, F; Chikuni, EDate:Jun 2017Lighting is an essential service in all industries. Recent innovation and continuous improvement in the field of lighting has given rise to tremendous energy saving opportunities in this area. This paper presents the results of an energy audit ...Read more
Author:Masonta, Moshe T; Mzyece, M; Mekuria, FissehaDate:Oct 2012Over the past two decades wireless broadband networks have come to be considered the most convenient and reliable means of communications. This has led to an increased number of cellular base stations (BSs) deployed in both urban and rural ...Read more
Author:Masonta, Moshe T; Haddad, Y; De Nardis, L; Kliks, A; Holland, ODate:Sep 2012Energy consumption of mobile and wireless networks and devices is significant, indirectly increasing greenhouse gas emissions and energy costs for operators. Cognitive radio (CR) solutions can save energy for such networks and devices; moreover, ...Read more
Author:Masonta, Moshe T; Olwal, T; Ntlatlapa, Ntsibane SDate:May 2010In the past decade, the access to telephone services has increased drastically due to the deployment of wireless technologies and liberalization of telecommunications markets. But internet access in most African rural communities still remains ...Read more
Author:Skosana, Vusi J; Abu-Mahfouz, Adnan MIDate:May 2023A measurement matrix is essential to compressed sensing frameworks. The measurement matrix can establish the fidelity of a compressed signal, reduce the sampling rate demand, and enhance the stability and performance of the recovery algorithm. ...Read more
Author:Dludla, Angeline G; Bembe, M; Olwal, T; Kyun Choi, JDate:Oct 2013SWEET routing protocol is one of the many pro- tocols developed for cluster formation and routing in wireless sensor networks. The SWEET protocol is a decentralized clus- tering protocol, it uses timers and interim updated cluster head ...Read more
Author:Ampofo-Anti, NLDate:Sep 2012The construction of homes provides social and economic benefits to society, but contributes significantly to environmental degradation. The focus of both international and South African efforts to improve the environmental performance of the ...Read more
Author:Gololo, V; Majozi, T; Zhelev, T; Semkov, KDate:2011Water cooling and water heating is an important source of energy consumption, accounting for more than 20% of all energy consumption in manufacturing industry. It is clear that the development of heat recycling schemes and better structural ...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:Ntshabele, K; Isong, B; Abu-Mahfouz, Adnan MIDate:Dec 2021Inefficient energy utilization in the cognitive radio sensor networks (CRSNs) is a serious challenge that adversely affects its performance and quality of service (QoS). Several different strategies and mechanisms have been proposed and ...Read more
Author:Aron, FO; Olwal, TO; Kurien, A; Hamam, YDate:Sep 2008Wireless mesh networks (WMNs) is becoming a promising new technology for extending coverage to farflung rural areas. This it achieves by linking the various wireless LANS (WLANs) in distant locations thus providing a vital mode complimentary ...Read more
Author:Van Reenen, Coralie ADate:Sep 2014The concept of green buildings is in response to the built environment's high negative environmental impact, including its contribution towards greenhouse gas emissions and the resultant climate change. At its core, the green building movement ...Read more