Author:Onumanyi, Adeiza J; Abu-Mahfouz, Adnan MI; Hancke, GDate:Feb 2021Self-adaptive threshold adjustment algorithms (SATAs) are required to reconfigure their parameters autonomously (i.e. to achieve self-parameter adjustment) at runtime and during online use for effective signal detection in cognitive radio ...Read more
Author:Masonta, Moshe T; Ngwenya, DWDate:Dec 2015The regulatory environment in radio frequency spectrum management lags the advancement of wireless technologies, especially in the area of cognitive radio and dynamic spectrum access. In this paper we argue that the solution towards spectrum ...Read more
Author:Takyi, A; Densmore, M; Johnson, DDate:Sep 2016Collaborative sensing among secondary users in television white space (cognitive radio) networks can considerably increase the probability of detecting primary or secondary users. In current collaborative sensing schemes, all collaborative ...Read more
Author:Onumanyi, Adeiza J; Abu-Mahfouz, Adnan MI; Hancke, GPDate:Aug 2018In this paper, we compare local and global adaptive threshold estimation techniques for energy detection in Cognitive Radio (CR). By this comparison we provide a sum-up synopsis on the effective performance range and the operating conditions ...Read more
Author:Oyewobi, SS; Hancke, GP; Abu-Mahfouz, Adnan MI; Onumanyi, Adeiza JDate:Aug 2019Cognitive radio has emerged as an enabling technology in the realization of a spectrum-efficient and delay-sensitive industrial wireless communication where nodes are capable of responding in real-time. However, particularly for time-critical ...Read more
Author:Oyewobi, SS; Hancke, GP; Abu-Mahfouz, Adnan MI; Onumanyi, Adeiza JDate:Mar 2019The overcrowding of the wireless space has triggered a strict competition for scare network resources. Therefore, there is a need for a dynamic spectrum access (DSA) technique that will ensure fair allocation of the available network resources ...Read more
Author:Wasonga, F; Olwal, TO; Abu-Mahfouz, Adnan MIDate:Jun 2018The growth of wireless communication in recent years has resulted to spectrum scarcity and increase in the number mobile users. However, the major concern in wireless communication is spectrum scarcity on fixed spectrum. Technologies such as ...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:Muwonge, BK; Chan, HADate:Apr 2008This paper highlights issues relating to signalling of IMS traffic, and how a truly seamless converged network may be achieved using cognitive radio technology. In this paper we propose implementation of the Resource Admission Control Subsystem ...Read more
Author:Lysko, Albert A; Masonta, Moshe T; Johnson, DL; Venter, HDate:Sep 2012The paper describes the predictions made for Bergvliet, South Africa in terms of the availability of the frequency spectrum occupied by analogue TV broadcast around that area. The focus is made on the availability of under-used TV channels ...Read more
Author:Onumanyi, Adeiza J; Abu-Mahfouz, Adnan MI; Hancke, GPDate:Jan 2021Parameter-based adaptive threshold estimators (ATEs) are widely used for signal detection in cognitive radio (CR) systems. However, their performance deteriorates under dynamic spectra conditions owing to a lack of valid methods to accurately ...Read more
Author:Wasonga, F; Olwal, TO; Abu-Mahfouz, Adnan MIDate:Nov 2019Cognitive radio employs an opportunistic spectrum access approach to ensure efficient utilization of the available spectrum by secondary users (SUs). To allow SUs to access the spectrum opportunistically, the spectrum sensing process must be ...Read more
Author:Onumanyi, Adeiza J; Abu-Mahfouz, Adnan MI; Hancke, GPDate:Nov 2020The Internet of Things (IoT) is an emerging paradigm that enables many beneficial and prospective application areas, such as smart metering, smart homes, smart industries, and smart city architectures, to name but a few. These application ...Read more
Author:Ogbodo, E; Dorrell, D; Abu-Mahfouz, Adnan MIDate:Jun 2019Traditional power grids have unidirectional power flow and often information transfer, this limits their capacity for scalability, efficiency, and renewable energy integration. Smart grids (SGs) are being developed as more intelligent power ...Read more
Author:Kagize, BM; Brink, SDate:2008This paper proposes the use of cognitive radio technology for multiple wireless sensor technologies in mines. The work is motivated by the lack of flexible and scalable sensor networks in mines. The proposed architecture uses cognitive radio ...Read more
Author:Masonta, Moshe T; Rananga, SDate:Aug 2023The growing demand for high-speed and ubiquitous connectivity continues to present new challenges for efficient usage, management and sharing of radio frequency spectrum. Dynamic spectrum access concept, enabled by cognitive radio technology, ...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:Masonta, Moshe T; Makgotlho, R; Mekuria, FissehaDate:May 2012In this paper an overview of the TV white space technology and dynamic spectrum access is presented with the aim of improving the capacity of wireless broadband connectivity of communities in emerging markets. The paper proposes that large ...Read more
Author:Masonta, Moshe T; Olwal, T; Mzyece, M; Ntlatlapa, Ntsibane SDate:Sep 2010Cognitive Radio (CR) is seen as a key enabling technology for addressing current under-utilization and inefficient use of radio frequency spectrum. The use of CR will see most of the spectrum white spaces being used opportunistically without ...Read more
Author:Masonta, Moshe T; Mzyece, M; Ntlatlapa, Ntsibane SDate:Nov 2012Spectrum decision is the ability of a cognitive radio (CR) to select the best available spectrum band to satisfy secondary users’ (SUs’) quality of service (QoS) requirements, without causing harmful interference to licensed or primary users ...Read more