## 3 Materials and Methods
### Eligibility Criteria and Information Source  
The justifications provided in the research publications and the criteria listed in Table 2 were contrasted. Relevant papers use search terms like NOMA, mobile edge computing, soft computing, and 6G in databases, including IEEE Xplore, Scopus, SpringerLink, Wiley Online Library, and Web of Science. We aim to provide you with a choice of results utilizing a range of general phrases and various search term combinations.  
\begin{table}
\begin{tabular}{p{113.8 pt} p{113.8 pt} p{113.8 pt}} \hline \hline
**Authors** & **Objectives** & **Limitations** \\ \hline \multirow{6}{*}{[PERSON] et al. [86]} & The authors completed a thorough categorization analysis of research in the power and code domains on NOMA-related energy-saving solutions. They gave a comprehensive review of the origins of NOMA. & The review was limited to only NOMA technology, and the study did consider the SLR process. \\ \cline{1-1}  & [PERSON], [PERSON], and [PERSON] [87] & The authors primarily investigate the execution of NOMA systems on software-defined radio (SDR) platforms. & The study did not consider the process of SLR. \\ \hline \multirow{6}{*}{[PERSON] et al. [88]} & The authors performed a thorough investigation of 6G networks. They examined the 6G networks’ applications, essential services, enabling technology, and upcoming difficulties. & Their review was just limited to the 6G communication network. \\ \cline{1-1}  & The scholars examined the evolution of Next Generation Multiple Access (NGMA), focusing particularly on the change from Non-Orthogonal Multiple Access (NOMA) to NGMA. & They did not conduct an SLR review process or consider MEC technology in their study. \\ \hline \multirow{6}{*}{[PERSON] et al. [90]} & The authors thoroughly analysed the important papers on UAV technology utilization connected to MEC-allowed or aided architectures. & They only considered UAV and MEC technologies and also, and they didn’t follow the SLR procedure. \\ \cline{1-1}  & & \\ \cline{1-1} \cline{2-2} \cline{4-4}  & & \\ \cline{1-1} \cline{2-2} \cline{4-4}  & & \\ \cline{1-1} \cline{2-2} \cline{4-4}  & & \\ \cline{1-1} \cline{2-2} \cline{4-4}  & & \\ \hline \hline \end{tabular}
\end{table}
Table 1: summarizes the various related literature reviewed.  
\begin{table}
\begin{tabular}{p{113.8 pt} p{113.8 pt}} \hline \hline
**Criteria** & **Justification** \\ \hline The analysis requires to be carried out on an investigative article & The study focuses on publications from peer-reviewed journals and conferences to ensure the selected publications are of exceptional eminence. \\ \hline The study was required to be published as a full-length paper. & A brief article typically lacks a strong evidence and cannot cover all the specifics of the suggested solution. \\ \hline The study’s papers have to be written in English. & The language of communication among the researchers who carried out this SLR is English. \\ \hline Publications must be pertinent to certain topics, like engineering. & The research in this article is not concentrated on any other topics. \\ \hline Articles that were published between 2010 and 2022 & To collect all relevant field-related data \\ \hline \hline \end{tabular}
\end{table}
Table 2: Inclusion and Exclusion Standards.