A Bibliometric Analysis Review on Energy Optimisation while Designing Wireless Sensor Networks

Energy optimisation algorithms play an essential role in reducing energy usage. Hence, it is mandatory to identify current themes and predict future research study in energy optimisation algorithms (EOAs) in wireless sensor networks (WSNs). Several reviews have been conducted on energy optimisation algorithms (EOAs) in WSNs, although many focused on narrative reviews. This study focuses on the findings of a bibliometric analysis of the literature on the status of EOAs proposed to reduce energy consumption in WSNs. The main objective is to inform future research on the status of EOAs in WSNs. In this study, a systematic literature review and bibliometric analysis are performed to evaluate the depth and extent of the research done in EOAs in WSNs. The literature searched broadly and systematically concerning WSNs from the WOS database (WOS) from 2019 to 2023 articles. The analysis considers bibliometric data from bibliometric coupling, co-citation analysis, co-authorship analysis, and keyword co-occurrence units of analysis retrieved from VOSviewer software. Following the study of the bibliometric data, various themes on WSNs and their applications have emerged. The results of the bibliometric analysis revealed that many schemes are used for these WSNs. This article has projected a detailed bibliometric analysis of PSO and LEACH protocols in WSNs by searching the WOS Database. The study also revealed opportunities to improve research work in WSNs by using different routing protocols.