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Particle swarm optimization algorithms (PSOA) is a metaheuristic algorithm used to optimize computational problems using candidate solutions or particles based on selected quality measures. Despite the extensive research published, studies that critically examine its recent scientific developments and research impact are lacking. Therefore, the publication trends and research landscape on PSOA research were examined. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and bibliometric analysis techniques were applied to identify and analyze the published documents indexed in Scopus from 2001 to 2021. The published documents on PSOA increased from 8 to 1,717 (21,362.50%) due to the growing applications of PSOA in solving computational problems. "Conference papers" is the most common document type, whereas the most prolific researcher on PSOA is Andries P. Engelbrecht (South Africa). The most active affiliation (Ministry of Education) and funding organization (National Natural Science Foundation) are based in China. The research landscape on PSOA revealed high levels of publications, citations, and collaborations among the top authors, institutions, and countries worldwide. Keywords co-occurrence analysis revealed that "particle swarm optimization (PSO)" occurred more frequently than others. The findings of the study could provide researchers and policymakers with insights into the prospects and challenges of PSOA research relative to similar algorithms in the literature. [ABSTRACT FROM AUTHOR]

5G (5th Generation) and the related technologies implementation are expected in 2020. The 5G is considered to be a breakthrough of IoT devices in terms of enhanced bandwidth, efficiency, reliability and energy consumption. This study focuses on quantitative and qualitative progression of research in the field of 5G. It also provides the publishing trend, most productive and cited countries, organizations, and authors on 5G. In addition, it identifies the most frequently used keywords, authorship pattern and preferred journals. The research is based on 5G related research from Scopus database, which includes all relevant keywords of the field limiting it to conference papers, articles, book chapters, editorial and books. The outcome of the study revealed that 5G related research is on the rise worldwide. The number of yearly published articles has increased from one to 2222 during the period between 2003 and 2020. China, United States and United-Kingdom are most productive countries. Beijing University of Posts and Telecommunications have taken lead in publishing 5G research. Furthermore, it is noteworthy that 19 out of these 20 most productive organizations in the world, seven belong to China. Majority of top 10 preferred journals are Q1 and published by IEEE (Institute of Electrical and Electronics Engineers). The most popular authorship pattern is three-authors. In subcategories of wireless networks, 5G communication gets a lot of attention. [ABSTRACT FROM AUTHOR]